JPH0412764A - Automatic control system for gas system fire extinguishing equipment - Google Patents

Abstract

PURPOSE:To secure the reliability of the fire extinguishing equipment, to automatically execute fire fighting in the case of a fire, and also, to minutely and surely grasp the state of fire fighting by providing independently a fire extinguishing sequence controller and an inspection sequence controller, respectively with respect to plural gas system automatic fire extinguishing equipments, and confirming in a lump whether abnormality of the control function of every fire extinguishing equipment exists or not. CONSTITUTION:When a signal of an inspection start is sent to an inspection sequence controller 28, a main controller 31 detects whether abnormality of pressure in a container exists or not, and when there is no abnormality, and when pressure decreases, 'no abnormality' and 'pressure decrease of fire extinguishing agent OO' are displayed on a screen 40, respectively, and printed in a legal inspection result report by a printer 100. When a signal of an inspection and monitoring from the main controller 31 is received, an actuation gas quantity monitor 56, a selection valve opening/closing monitor 60. a line monitor 33, a disconnection monitor of a pilot lamp, a loudspeaker and a container valve solenoid, and monitors in a fire extinguishing sequence controller 17 and the inspection sequence controller 28 execute automatically an inspection, print its result in the legal inspection result report by the printer 100.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic control system for a plurality of gas fire extinguishing equipment. More specifically, gas-based automatic fire extinguishing equipment that automatically extinguishes the target object or zone where a fire has occurred by selecting it with a selection valve is installed in the same building or on the same site. This invention relates to an automatic control system for gas-based fire extinguishing equipment when there are multiple gas-based fire extinguishing equipments, or where multiple gas-based fire extinguishing equipments exist in separate locations.

○Prior art - Automatic fire extinguishing equipment is known that automatically suppresses the fire in response to a signal from a fire detector when a fire breaks out in the object or compartment to be extinguished. Fire extinguishing equipment is required to have an extremely high level of reliability in order to prepare for fires that may occur in the future. However, there was no system that could monitor all equipment, including the equipment that makes up the fire extinguishing equipment, for abnormalities, automatically issue an alarm if an abnormality is detected, and automatically check the functionality of the equipment.

In addition, in recent years, as opportunities for installing gas-based fire extinguishing equipment have increased, such as in skyscrapers and large-scale semiconductor equipment, separate fire extinguishing equipment is required to protect multiple sections even within the same building or site. In addition, fire extinguishing equipment has been installed at telegraph WG stations, which serve as the base for networking communication functions, and at power generation and substations, which are the backbone of industry. remains under control.

0 Problems to be Solved by the Invention In the prior art described above, there is no technology to automatically monitor and inspect the entire equipment for multiple gas-based automatic fire extinguishing equipment, so it is difficult to integrate the reliability of each fire extinguishing Hm. It is extremely difficult to realize an automatic control system that can accurately grasp fire conditions and check the situation in the event of a fire.

There are two main things that are important in ensuring the reliability of fire extinguishing equipment. One of these is that each device is maintained in a normal condition, that is, there are no abnormalities such as disconnections or short circuits in the electrical lines that connect each device, and that a series of control functions are working correctly. One of these is the ability to check the functionality of fire extinguishing equipment at any time, quickly judge the results, and take appropriate measures.

Therefore, the present invention aims to ensure the reliability of the fire extinguishing equipment, to automatically extinguish the fire in the event of a fire, and to accurately grasp the status of the fire extinguishing operation in case of a fire. An object of the present invention is to provide an automatic control system for fire extinguishing equipment that enables the following.

0 Means for Solving ProblemsIn addition to independently providing a fire extinguishing sequence control device and an inspection sequence control device for multiple gas-based automatic fire extinguishing equipment, each fire extinguishing sequence control device and inspection sequence control device are provided for each of the multiple gas fire extinguishing equipment. A single main control device is provided to collectively control the devices, and the configuration is such that signals from the main control device are used to collectively check whether there is an abnormality in the control function of each fire extinguishing equipment.

Embodiment The present invention will be described in detail below based on the embodiment shown in the drawings.

The first part showing the outline of the automatic control system for fire extinguishing equipment of the present invention
Referring to the figure, ■, ■, .

For each of the k group of fire extinguishing equipment, a fire extinguishing sequence controller 17 and an inspection sequence controller 28 are independently installed.
and a fire extinguishing sequence control device i1 for group k fire extinguishing equipment.
7 and the inspection sequence control device 28 are provided with a common main control device N31.

Figure 2 shows an example of equipment arrangement for one of the fire extinguishing equipment in the group, with a container valve 2 installed at the top of a high-pressure gas container 1 filled with carbon dioxide, a halogen compound, or other inert gas extinguishing agent. ...and opening device 3! ... is attached, and a small-diameter starting gas pipe 4 is attached to each opening device 3...
・Connect. The outlet of the container valve 2... is the connecting pipe 5...
・ is connected to piping 6 . . . , and from this piping 6 . . ., selection valves 7-I, 7-IT .・Branch 7-n.

Selection valve 7-I, 7-IT...7-n piping 8-
I, 8-IL and 8-n are fire extinguishing target sections 1. T.I.
. . , and the injection heads 9, 9 . . . are opened toward the interior of the room. Near the entrance of each of the fire extinguishing target compartments I, II...n, there are operation boxes 10-I, 10-11...10-n for manually starting the fire extinguishing equipment, and gas in the room after extinguishing agent is released. Fullness indicator lights 11-I, 11-TI ・= 11-n are installed near the wall to indicate that the area is full.
2-11...12-n, fire detector 13- on the ceiling
I, 13-II...=...13-n are installed, and the electric wires 14... from each device are connected to the connection box 1.
5... to the input/output device 18 for the fire extinguishing sequence control device 17 in the control panel 16. Input/output device 18
In addition, electric wires are connected to the fire extinguishing sequence control device M17 in the control panel 16.

To the outside of the panel, start gas containers 19-I, 19-11...1
Container valve solenoid 20-1.2 for opening 9-n
Electric wires 21... extending to 0-11...20-n and piping 8-I in each fire extinguishing compartment that operates when extinguishing agent is released
, 8-H, . . . , electric wires 23 branching from the middle of 8-n to pressure switches 22-1, 22-IT are also wired. A small diameter flexible pipe 24 is attached to the outlet of the starting gas container 19-1, 19-11...19-n,
Selection valves 7-I, 7-11, 7- for each fire extinguishing compartment are connected via piping hardware 25... and starting gas piping 4...
n opening device 11m 26-I, 26-II
・Connect to 26-n. Opening device 26-I, 26-11
. . . From one end of each of 26-n, there is further a non-return valve 2.
7... to the starting gas pipe 4 leading to the extinguishing agent container 1... In addition, the fire extinguishing sequence control device 17
Various signals emitted from the inspection sequence control system
28, and signal lines 29 and 30-I to the main control device 31 installed in the building's central control room, regional control center, etc. . The main control device 31 has signal lines 30-2, 30-3...30- from other fire extinguishing equipment.
k is connected.

In FIG. 1, 101 is an input/output device in the main control device;
102 is a power supply device for each fire extinguishing equipment.

Next, equipment for controlling the extinguishing sequence will be explained with reference to FIG. In block 1 of the figure, 1
The numbers 0, 11, 12, 13, 16, 17, 18, 20 and 22 are respectively in the explanation of FIG.
0. Fullness indicator light 11° Speaker 12. Fire detector 13.
Control panel 16. Input/output device 18 for fire extinguishing sequence control device
．． Corresponding to the container valve solenoid 20 and pressure switch 22. As is clear from the correspondence between Figures 1 and 2,
For example, the number of objects to be extinguished and sections to be extinguished in the fire extinguishing equipment of block 1 is nl. Here, the fire extinguishing equipment of block 1 will be explained.

The audio alarm device 32 in the control panel is a signal from a switch (not shown) that is turned on when the door of the operation box 10 is opened, or a fire alarm 1
It operates based on the signal based on the operation of step 3, and sends out an evacuation broadcast announcement from the speaker 12. The electric line monitoring device 33 includes the shaded electric line shown in FIG. 1, that is, from the input/output device 18 to the fire detector 13, the speaker 12, an indicator light in the operation box 10, and switches (none of which are shown). , the container valve solenoid 20 , and the pressure switch 22 , the electric line is monitored by passing a weak current through the electric line. From the fire extinguishing sequence control device 17, control f##
Electric wires are also connected to a plurality of indicator lights and switches attached to the surface of 16 to provide the required functions. These devices on the surface of the control panel will be explained with reference to FIG. Reference numeral 34 denotes a collective indicator light, and the functions of the individual indicator lights are as shown in Table 1 below, corresponding to the symbols shown in FIG.

When the first disaster indicator light LF lights up, it displays the number of the section where the fire occurred and is subject to extinguishing, and when the extinguishing agent release indicator light LF lights up, it displays the number of the section where the extinguishing agent was released. . 37 is an automatic/manual changeover switch, which is switched to the automatic side when the area to be extinguished is completely unmanned, and to the manual side in other cases, depending on the situation. 38 is a recovery switch, which is used to restore all fire extinguishing equipment when the fire is completely extinguished. Other equipment in the control panel will be explained in detail in the inspection sequence control section below.

Next, Figure 1 shows the flow of fire extinguishing sequence control.
This will be explained with reference to the block diagrams of FIGS. 2 and 4.

When a fire breaks out in any of the compartments, the fire detector 13 is activated, the fire indicator light LF lights up, and a fire alarm (not shown) sounds. When the automatic/manual changeover switch 37 is in the automatic position, the signal activates the relay (not shown) in the fire extinguishing sequence control bag M17, activates the audio alarm system 32, and issues an evacuation command via a speaker in the room. An announcement will be broadcast. As a result, even if there are people left in the room, a warning is given so that they can escape safely. Furthermore, the relay stops each machine and the indoor ventilation system (none of which are shown), and at the same time, the fire extinguishing sequence control device 17
A timer (not shown) within the box starts firing. When the set time of the timer (20 seconds or more allows time for escape) has elapsed, a start signal for the fire extinguishing equipment is sent out via the electric wire 21, the container valve solenoid 2o is activated, and the starting gas container is activated. Open 19. Starting gas container 19
The -H working gas flowing out from the starting gas pipe 4 reaches the open bag N3 of the extinguishing agent container 1, and opens the container valve 2. Part of the starting gas is also a selection valve opening device for the section! 26 and opens the selection valve 7, the extinguishing agent passes through the selection valve 7, the piping 8, the injection head 9... and fills the fire compartment, thereby achieving extinguishment.

Selective valve opening device 26-I, 26-TI, 26
- A non-return valve 27 is attached to each outlet of n, and in order to prevent backflow of the starting gas, the selection valves of other sections are not opened. A pressure switch 22 installed in the middle of the pipe 8 is activated by the pressure of the extinguishing agent, and the signal lights up the fullness indicator 11 installed near the entrance in the area to be extinguished, prohibiting people from entering the room. indicate. At the same time, the discharge indicator light LF on the control panel 16 lights up in response to that signal, and the section number is displayed on the numerical display.

In addition, in the above explanation, if the automatic manual changeover switch 37 is on the manual side, after confirming the fire by an alarm from the fire detector 13 or by direct visual inspection, start the fire extinguishing equipment manually in the following order. .

That is, when the door of the operation box 10 is opened, an audio alarm device activation switch (not shown) is turned on, and that signal activates the audio alarm device 32.
is activated, and an evacuation command announcement is broadcast from the indoor speaker 12. After confirming WI personnel evacuation, open operation box 1.
The activation indicator light (not shown) in 0 lights up to notify the start of activation of the fire extinguishing equipment. When the relay is activated, various devices and an indoor ventilation system (not shown) are stopped, and at the same time, a timer (not shown) in the fire extinguishing sequence control device 17 is started. If by any chance, fire detector 13
If it is necessary to cancel due to a false alarm, a mistake in operation, or other reasons, press the stop button (not shown) in the operation box 10 within the timer setting, and then continue the operation. If you close the door of box 10, the relay will be restored.
Return all fire extinguishing equipment to its original state and prepare for the next event. If the timer setting time elapses without pressing the stop button, the container valve solenoid 20 operates, and the fire extinguishing equipment operates to extinguish the fire in the same manner as when the automatic manual changeover switch 37 is in the automatic position. do.

In addition, in FIG. 4, all the flows including the operation of the equipment are controlled by the input/output device 18, the fire extinguishing sequence control device 17,
It is sent to the main control bag W31 via the inspection sequence control device 28 and the signal line 30-1, and the main control device! After the data is processed in the computer 39 in the computer 31, the required display is displayed on the screen 40, that is, the time when the fire occurred;
Display of the name of the fire compartment, whether it is automatic or manual, and appropriate instructions corresponding to it (for example, roo for manual.

A fire broke out in the room. Check the status of the fire and carry out extinguishing activities. ], if automatic, select [Start timer]. An evacuation warning is being announced. ), timer start display, starting gas container open display, selection valve open display, fire extinguishing agent, sulfur release display, indoor discharge display, extinguishing completion display, etc. In addition, the series of above-mentioned [fire ~ extinguishing]
The fire extinguishing sequence control process leading to the above is configured to operate with priority over the above, regardless of whether the entire system is being inspected or monitored, which will be described later. Therefore, the status is also displayed on the screen.

Next, the arrangement of equipment for monitoring each fire extinguishing equipment and its functions will be explained with reference to FIGS. 1 and 2. 51・
. . is a device for monitoring the amount of extinguishing agent stored in the extinguishing agent container 1.
Pressure monitoring device, Utility Model Application No. 1986-26697 and Utility Model Application No. 1999-
Use a mass monitoring device such as 111417. Here, an example of a pressure monitoring device disclosed in Japanese Patent Application No. 57-204350 will be explained. The functions of the fire extinguisher arrangement monitoring device 51 are as follows. That is, the internal pressure value of each extinguishing agent container 1 is sent from the input/output device 55 in the control panel 16 to the inspection sequence control device 28 through the electric lines 52 , the relay box 53, and the electric line 54, respectively. , are compared and calculated with each other within the inspection sequence control device 28. If there is an abnormality in the internal pressure, an indicator light (described later) on the panel of the control panel 16 is lit, and a signal indicating an abnormal internal pressure value is sent to the main controller 31. The abnormality detection procedure is shown in Fig. 6. As shown in the example.

Reference numeral 56 denotes a starting gas amount monitoring device that utilizes a small electronic scale, on which a starting gas container 19 is installed without restriction, and the entire device is housed in a small closed box 57. The electronic scale constantly monitors the total mass of the starting gas container 19 and the container valve solenoid 20 attached to it, but the outlet of the starting gas container 19 is connected to the starting gas container 19 via a flexible pipe 24 by a connecting fitting 25. Since it is connected to the gas piping 4 and the electric wire for operating the container valve solenoid 20 is also connected with sufficient visibility, the starting gas monitoring device 56 can be used with a slight reduction in jtl, for example, a total mass of 10 kg. For, 0.0
It is capable of detecting mass fluctuations of 1 kg.

It is standard to use 1 kg of carbon dioxide as the starting gas, and the weight loss is 10%, that is, 0.
．． Since the limit is 1 kg, the setting value of the weight loss abnormality alarm of the scale is set to, for example, [Initial mass minus o, 05 kg], and when the setting value is reached, a signal is sent from the input/output device 55 to control the inspection sequence. The startup gas amount monitoring device 56 is configured to be fed into the device 28 .
works correctly.

60 is a selection valve opening/closing monitoring device, and an example of its structure is shown in the seventh section.
Illustrated in the figure. A limit switch 61 is attached to a valve box 71 of a selection valve 7, and its actuator 62 is set in a pressed state by a valve holder 72 of the selection valve 7. At this time,
When the limit switch 61 is turned on, the signal passes through the electric line 63, the relay box 64, and the electric line 65,
It is sent from the input/output device 55 to the inspection sequence control device 28. This is the state where the selection valve is closed (normal). Now, when the starting gas is introduced into the selective valve opening device 26 through the pipe 4, the piston lever 73 goes up (Fig. The valve holder 72, which was supported and fixed, becomes free and springs upward by the force of the spring 75. Valve holder 7
When the pressing force of step 2 is no longer applied, the actuator 62 returns to the state before setting, and the switch is turned off. The signal is sent to the inspection sequence control device 28 in the same procedure as described above, and the state is set to [selective valve open].

When the selection valve 7 is in this state, the extinguishing agent flows from the pipe 6 to the pipe 8 leading to the section to be extinguished, as shown by the arrow in the figure. In cases other than firefighting, for example, if the selective valve opening device does not operate due to a careless mistake, accident, mischief, or other reason, and the valve retainer 72 is not properly set, the limit switch 61 is turned OFF. Therefore, the signal [selection valve open (abnormal)] is sent to the inspection sequence control device 28, and the normal-abnormal state of the selection valve 7 can be monitored.

Next, the electric line monitoring device 33 will be explained.

As a means for detecting abnormalities such as disconnections and short circuits in electric lines, there is, for example, Utility Application No. 1-139634, the principle of which is shown in FIG. In the figure, by identifying the voltage VM across the resistor MR connected to the switch circuit, it is possible to determine whether it is normal (monitoring state), normal (push button activation), short circuit, or disconnection. In addition, it is necessary and sufficient to simply monitor circuit breaks for items that serve as electrical load resistance, such as indicator light bulbs, speakers, container valve solenoid coils, etc., but the details of these monitoring devices are Since this is well known, the explanation will be omitted.

Monitoring devices (not shown) include monitoring for the presence or absence of ground faults in all electrical lines, monitoring for presence or absence of abnormalities in the power supply voltage, etc., but since these are well known devices, their explanations will be omitted.

In addition, within the fire extinguishing sequence control device N17 and the inspection sequence control device 28, the respective sequence control sections are monitored by a check sum function, but since this is also a known technique, a description thereof will be omitted.

Abnormalities detected by these monitoring devices are displayed on the collective indicator light 81 of the control panel 16, and their functions are as shown in Table 2, corresponding to the symbols in FIG.
(N2 pressure decrease display PP and piping abnormality display PQ will be described later).

Table 2 Furthermore, two-digit numerical displays 82 and 83 are provided on the surface of the control panel 16, and the numerical display 82 has symbols DT, SP,
PB, SM, LT, CV, PS.

If either the WA or SS indicator light lights up,
The area to be extinguished (I, IT,
.

The signals emitted from each of the monitoring devices described above are all sent to the main control device 31, and after being data processed by the computer 39 in the main control device 31, an [abnormality] message is displayed on the screen 40. , If necessary, this is followed by the state of each abnormality and appropriate instructions corresponding thereto. For example, in the case of a speaker circuit break, regardless of whether the screen is for inspection or monitoring,
One part of it displays [Speaker circuit abnormality], so...
In response to this, the observer presses the keyboard 8 of the main control device 31.
4, when a screen selection instruction is given, the section to be extinguished where the abnormality has occurred and the position of the speaker that should be investigated immediately are displayed on the screen.

Functions related to other monitoring devices also have similar configurations, so descriptions thereof will be omitted.

Next, the arrangement of equipment for inspection of each fire extinguishing equipment and its functions will be explained with reference to FIGS. 1 and 2. In the figure, 85 is a piping airtightness test device, and an example of its configuration is shown in 9th section.
As shown in the figure.

The N2 (nitrogen) gas container 86 is always open, and the pressure reducing valve 87
at a constant pressure well below the pressure of the extinguishing agent, e.g.
N2 gas, which has been reduced in pressure to ``kg/cm'', is added to a piping section 89 up to a normally closed solenoid valve 88.The piping section 90 beyond the solenoid valve 88 further branches into two directions.
A normally closed solenoid valve 91 that opens to the atmosphere is attached to one side, and a normally closed solenoid valve 92 is attached to the other side, and the end thereof is configured to communicate with the piping 6 of the fire extinguishing equipment. Connected to the input/output device fi55 via the solenoid valves 88, 91 and 92, electric wire 93, relay terminal 94, electric line 95 and relay box 53,
The arrangement is such that it can be opened and closed by signals from the inspection sequence control device 28. In addition, a pressure sensor 97 for monitoring the N2 pressure inside the container is attached to the outlet piping section 96 of the N2 gas container 86, a pressure sensor 98 for measuring the piping airtightness test pressure is attached to the piping section 6, and the above-mentioned solenoid valve Similarly, the pressure electric line is connected to the input/output device 55 to read the pressure value at the relevant portion.

In the piping airtightness test, a constant pressure of N2 is applied inside the piping section 6.
Gas is applied for a certain period of time, and the airtightness of the piping is checked by checking whether or not there is a pressure drop during that time.When an inspection start signal is issued from the inspection sequence control device 28 to jl185 during the piping airtightness test, the The piping airtightness test is started according to the flow shown in Figure 10. In this case, T1 shown in the figure is the time required for pressurization, T2 is the time required for pressure stabilization, and T3 is the time required for pressure drop, which are determined depending on the scale of the fire extinguishing equipment, and depending on the internal volume of the piping section 6. , for example, 5 minutes, 10 minutes, and 5 minutes. . When the piping airtightness test is completed, the results are sent to the inspection sequence control device 28.
The data is sent to the main control device N31 through the N31, and after being data processed by the computer 39 in the main control device N31, it is displayed on the screen 4o. At the same time, the printer 100 in the main controller 31 prints out a legal inspection result report (not shown).

Note that during the piping airtightness test, a fire signal is generated by the operation of the fire detector 13 or by opening the door of the operation box 10.
When the activation signal for the fire extinguishing equipment is sent to the main controller 31, a closing signal for the solenoid valve 92 is immediately sent to the piping airtightness test device 85, and at the same time, a command to stop the piping airtightness test is issued, and the Configure the system to return to the point before [Start] in the flow shown in Figure 10. By doing so, even if the extinguishing agent released from the extinguishing agent container reaches the piping section 6, there is no risk of it leaking into the atmosphere. Also, the 10,000-N2 gas is in the piping section 6.
Even if it remains in the air, it is in a relatively small amount and is an inert gas, so it does not affect firefighting efforts.

The piping airtightness test device 85 described above is a test device for inspection, but other inspection devices include the above-mentioned extinguishing agent type monitoring device 51, the starting gas amount monitoring device 156, and the selection valve opening/closing monitoring device 60. , the electric line monitoring device N33, the indicator light/speaker/container valve solenoid disconnection monitoring device (all not shown), and the monitoring devices in the fire extinguishing sequence control device 17 and the inspection sequence control device @28 also function as inspection devices. Configure it like this.

As an example, the case of the fire extinguisher type monitoring device 51 will be explained. When the main control device 31 sends a signal to start inspection to the inspection sequence control device 28, it detects whether there is an abnormality in the pressure inside the container according to the flow shown in Fig. 6, and if there is no abnormality, it is determined as [No abnormality] and the pressure decreases. [Extinguishing agent container O]
O pressure decrease] is displayed on the screen 40, and the printer 100
This will be printed on the legal inspection result report. Following the same procedure, start-up gas amount monitoring device 56, selection valve opening/closing monitoring device 60, electric line monitoring device 33, indicator light/speaker/container valve solenoid disconnection monitoring device, extinguishing sequence control device 17, and inspection sequence control device When the monitoring device in 28 receives an inspection and monitoring signal from the main controller 31, it automatically performs an inspection and sends the results to the printer 1.
00 is printed on the legal inspection result report.

By the way, the number of legal inspections of fire extinguishing equipment is stipulated to be carried out twice a year, and the results are to be entered in the statutory inspection result report and submitted to the local fire department. There are two inspection items i mentioned above, and the main controller 3
1, the computer 39 is programmed in advance to start the inspection at an appropriate time within a period not exceeding 6 months for each of Pro-Tsuku ■, ■...■. It becomes an implementation system.

In addition, as part of daily voluntary inspections, important items are inspected once a day or once a week, etc., and a printed record of the inspection results is posted on the fire extinguishing equipment. It is also possible to program the computer 39 so that the person in charge of the management can check the information.

Furthermore, in this system, in order to carry out an inspection at any time, in addition to the above-mentioned automatic inspection, if an active inspection is instructed from the keyboard 84 of the main controller 31, the inspection can be carried out automatically as described above. , the results are displayed on the screen 40 and printed.

Next, the roles of the inspection sequence control device 28 and the fire extinguishing sequence control device 17 will be explained.

Referring to the above explanation and FIG. As shown in the signal line type in the figure, the main controller 31 also connects the inspection sequence controller W2.
8 as well, the configuration is such that no signal is sent to the fire extinguishing sequence control device 17. This is to prevent the fire extinguishing sequence control unit for the fire extinguishing equipment from mixing signals other than those essential for fire extinguishing, such as fire and start signals. By configuring it in this way, it is possible to avoid problems such as computer failures and signal wires. Be prepared for unforeseen accidents or malfunctions due to wire breaks or other causes.

In addition, among the above explanations, the entire series of equipment operations from the occurrence of a fire to the extinguishing of the fire, all abnormalities during monitoring, and when individual equipment operates independently, the names and names of these equipment or circuits. All occurrence times are stored in the computer 39, and the screen 40 is optionally stored.
The configuration is such that it can be displayed and printed by the printer 100. As a result, in this system, the operation of the equipment and the order and time of abnormalities that occur are completely remembered, so by verifying this history at a later date, in the event of an abnormal situation such as an actual fire or release accident,
This makes it easier to investigate the cause. This means that
In conventional sequence control of fire extinguishing equipment, for example, in the event of a fire extinguishing agent release accident, the cause of the fire is unclear, whether it was due to an actual fire, malfunction, or mischief. It is particularly useful in solving problems.

○Effects of the Invention The present invention provides independent fire extinguishing sequence control devices and inspection sequence control devices for a plurality of gas-based automatic fire extinguishing equipment, and provides respective fire extinguishing sequence control devices and inspection sequence control devices for the plurality of fire extinguishing equipment. A single main control device is provided to collectively control the equipment, and signals from the main control device are used to check whether there is any abnormality in the control function of each fire extinguishing equipment.The following effects can be achieved. It is something that you have.

Using signals from a single main control device, legal inspections of each fire extinguishing equipment and confirmation of abnormalities in the control functions of each fire extinguishing equipment can be performed all at once.

Even if the fire extinguishing equipment is being inspected or checked for abnormalities, if it becomes necessary to start the fire extinguishing equipment due to a fire outbreak, the inspection or checking for abnormalities will be automatically stopped. fire extinguishing equipment.

By collectively controlling from a single main control device, in the event of a fire, the status of fire extinguishing activities can be grasped on the main control device's screen display and appropriate instructions can be given. It is possible to check the equipment being inspected, the inspection results, and the details of abnormalities in the control function of the fire extinguishing equipment on the screen display of the main control device. ,

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the outline of an automatic control system for fire extinguishing equipment according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing the equipment arrangement of the fire extinguishing equipment. Figure 3 is a front view of the control panel, Figure 4 is a flow diagram showing the operation of equipment during fire extinguishing, Figure 5 is a perspective view of the main controller, and Figure 6 shows the procedure for abnormality detection by the main controller. It is a flow diagram. FIG. 7 is a longitudinal sectional view of the selective valve opening/closing type monitoring device, in which a is a standby state and b is an actuated (valve open) state. FIG. 8 is a circuit diagram of the electric line monitoring device. FIG. 9 is a circuit diagram of the piping airtightness test device, and FIG. 10 is a flow diagram of the piping airtightness test. 16...... Control panel 17... Fire extinguishing sequence control device 28.
...Inspection sequence control device 31...
...Main controller applicant: Koatsu Gas Kogyo Co., Ltd. Figure 3 Figure 7 Figure 10 Figure 8 (6) U Translation School (b) Ki←Gin (0 HirojiGin (d) VM at IFra -24V v,,1-ov Figure 9

Claims (1)

[Scope of Claims] In the case where there is a plurality of gas-based automatic fire extinguishing equipment that automatically extinguishes a target object or compartment in which a fire has occurred by selecting it with a selection valve. In addition to providing independent fire extinguishing sequence control devices and inspection sequence control devices for multiple gas-based automatic fire extinguishing equipment, a single system that collectively controls the respective fire extinguishing sequence control devices and inspection sequence control devices for multiple gas fire extinguishing equipment is installed. An automatic control system for gas fire extinguishing equipment, characterized in that a main control device is provided, and the presence or absence of abnormalities in the control functions of each fire extinguishing equipment is checked all at once based on signals from the main control device.