JP6810224B2 - Package type automatic fire extinguishing equipment - Google Patents

Description

The present invention relates to a package-type automatic fire extinguishing system that extinguishes a fire by using a fire extinguishing agent stored in a tank unit.

Conventionally, a package-type automatic fire extinguishing system that radiates a fire extinguishing agent stored in a tank unit from a nozzle is known (see, for example, Patent Documents 1 and 2). Patent Document 1 discloses a home-use central fire extinguishing system in which when a fire is detected, the fire extinguishing agent stored in the fire extinguishing agent storage container is automatically emitted to the fire extinguishing agent injection head near the fire occurrence location via a conduit. Has been done. Patent Document 2 discloses an automatic fire extinguishing system including a tank for storing a fire extinguishing agent and a pressurizing means for pressurizing the inside of the tank, and pressurizing the inside of the tank by the pressurizing means in the event of a fire.

Japanese Unexamined Patent Publication No. 2001-104506 Japanese Unexamined Patent Publication No. 10-216262

Package-type automatic fire extinguishing equipment such as Patent Documents 1 and 2 radiates the entire amount of fire extinguishing agent stored in the tank to the fire extinguishing section to extinguish the fire. If the surface of the combustible is burning, the fire extinguishing agent can be radiated directly to the fire source to extinguish the fire. However, if there is an obstacle between the nozzle and the fire source and the fire source is not directly exposed to the fire extinguishing agent, it may not be possible to extinguish the fire even if all the fire extinguishing agents in the tank unit are radiated. Even if the fire cannot be extinguished and combustion continues, the fire extinguishing agent cannot be radiated again because there is no fire extinguishing agent in the tank unit, so that it is not possible to suppress the spread of the fire in the fire section.

The present invention has been made to solve the above-mentioned problems, and can enhance the effect of suppressing the spread of fire when performing fire extinguishing activities using the fire extinguishing agent stored in the tank unit. The purpose is to provide packaged automatic fire extinguishing equipment.

The package-type automatic fire extinguishing equipment according to the present invention includes a tank unit in which a fire extinguishing agent is stored, a plurality of discharge conduits that branch from the tank unit to each of a plurality of systems and supply the fire extinguishing agent from the tank unit, and a plurality of discharges. A plurality of fire extinguishing agent emitting parts connected to each of the conduits and radiating the fire extinguishing agent flowing through the discharge conduit, and each of the plurality of discharging conduits are provided to control the supply of the fire extinguishing agent from the tank unit to the fire extinguishing agent emitting part. It has a plurality of selection valves, a plurality of fire detection units that detect a fire at the installation location of the fire extinguishing agent radiation unit, and a control unit that controls the operation of the selection valve based on the fire detection by the fire detection unit. parts are first lines fire is detected in the selected valve in a fire sensing unit, after the continuous open operation, intermittent opening operation is controlled to perform the first operation and the selected valve is intermittently opened operations If a fire is detected in a fire detection unit of a different system during the operation, the selection valve of the different system is controlled to open and close so as to perform an intermittent opening operation .

According to the package type automatic fire extinguishing system of the present invention, the effect of suppressing the spread of fire can be enhanced.

It is a schematic diagram which shows the embodiment of the package type automatic fire extinguishing system of this invention. It is a flowchart which shows the operation example of the package type automatic fire extinguishing equipment of FIG. It is a timing chart which shows opening and closing of a selection valve when a fire breaks out in another fire extinguishing section while continuous opening operation is performed in one fire extinguishing section of FIG. It is a timing chart which shows opening and closing of a selection valve when a fire breaks out in another fire extinguishing section while intermittent opening operation is performed in one fire extinguishing section of FIG.

Hereinafter, embodiments of the package-type automatic fire extinguishing system will be described with reference to the drawings. FIG. 1 is a schematic view showing an embodiment of a package-type automatic fire extinguishing system of the present invention. The package-type automatic fire extinguishing system 1 of FIG. 1 senses heat generated by a fire and automatically radiates a fire extinguishing agent to extinguish the fire. The package type automatic fire extinguishing equipment 1 is provided for each of the tank unit 2, a plurality of discharge conduits 9A to 9C connected to the tank unit 2 and provided for each of the plurality of systems A to C, and a plurality of systems A to C. It includes selection valves 6A to 6C, a plurality of fire detection units 10 installed in each fire extinguishing section, a fire extinguishing agent radiating unit 11, and a control unit 20.

The tank unit 2 stores fire extinguishing agents, and has a structure in which, for example, a plurality of (for example, four) fire extinguishing agent storage containers 2A connected to each other by pipes are housed in a housing. Although the case where the tank unit 2 is provided with four fire extinguishing agent storage containers 2A is illustrated, the structure is not limited to the above, and the tank unit 2 may be composed of one fire extinguishing agent storage container 2A or two or more fire extinguishing agents. The drug storage container 2A may be connected to each other by a pipe.

The tank unit 2 has a pressurizing gas container 3 connected to the fire extinguishing agent storage container 2A via a start valve 4. The pressurizing gas container 3 is filled with a pressurizing gas for pressurizing the pressure in the fire extinguishing agent storage container 2A such as nitrogen gas. The start valve 4 controls the supply of the pressurizing gas to the fire extinguishing agent storage container 2A, and its operation is controlled by the control unit 20. Then, when the fire extinguishing agent is supplied from the fire extinguishing agent storage container 2A to the discharge conduits 9A to 9C in the event of a fire, the start valve 4 opens, and the pressurizing gas is supplied from the pressurizing gas container 3 to the fire extinguishing agent storage container 2A. , The inside of the fire extinguishing agent storage container 2A is pressurized. As a result, the fire extinguishing agent in the fire extinguishing agent storage container 2A can be supplied to the discharge conduits 9A to 9C at a predetermined pressure. A pressure regulator 4A is provided between the fire extinguishing agent storage container 2A and the start valve 4, and a gas having a predetermined pressure is supplied from the pressurizing gas container 3 to the fire extinguishing agent storage container 2A. ing.

The tank unit 2 has a primary side pipe 8 that connects the fire extinguishing agent storage container 2A and the selection valves 6A to 6C, respectively. Constant flow rate valves 5A to 5C are provided between the primary side pipe 8 and the selection valves 6A to 6C. The constant flow rate valves 5A to 5C are adjusted so that a constant flow rate of the fire extinguishing agent is supplied from the tank unit 2 to the fire extinguishing agent radiating unit 11. That is, the constant flow rate valves 5A to 5C are adjusting valves that keep the flow rate constant regardless of the pressure change on the inlet side or the outlet side of the selection valves 6A to 6C.

The selection valves 6A to 6C are connected to the control unit 20 via a signal line and control the supply of the fire extinguishing agent from the tank unit 2 to the discharge conduits 9A to 9C. When the selection valves 6A to 6C are closed, the fire extinguishing agent is not supplied from the tank unit 2 to the fire extinguishing agent radiating unit 11 side, and when the selection valves 6A to 6C are opened, the tank unit 2 moves to the fire extinguishing agent radiating unit 11 side. Fire extinguishing agent is supplied. The selection valves 6A to 6C are connected to the discharge conduits 9A to 9C via check valves 7A to 7C, respectively.

The discharge conduits (secondary side pipes) 9A to 9C connect the tank unit 2 and the fire extinguishing agent radiating unit 11, and are provided for each of the three systems A to C in FIG. Further, the discharge conduits 9A to 9C of each system A to C are branched into predetermined fire extinguishing compartments A1, A2, B1, B2, C1 and C2, respectively, and the fire extinguishing agent radiating portions installed in the fire extinguishing compartments A1 to C2, respectively. It is connected to 11.
There are three systems A to C, and two predetermined fire extinguishing sections A, B, and C each, but at least two systems are sufficient, and the fire extinguishing sections A, B, and C are If it is 1 or more, it is not necessary to make the same number.

Further, a water supply device 31 is connected to the discharge conduits 9A to 9C via a water supply pipe 30. The discharge conduits 9A to 9C are filled with water by the water supply device 31 via the water supply pipe 30 and are in a state where a low water pressure is applied (wet). The water supply pipe 30 is provided with shutoff valves 33A to 33C via check valves 32A to 32C for each of the systems A to C, and the shutoff valves 33A to 33C are control units connected via signal lines (not shown). The water supply from the water supply device 31 is cut off by the command of 20.

The fire detection unit 10 is, for example, a heat-sensitive open joint, and is installed at the installation location of the fire extinguishing agent radiating unit 11 to detect a fire at the installation location. The heat-sensitive open joint 10 is connected between the discharge conduits 9A to 9C and the fire extinguishing agent radiating portion 11. The valve body of the heat-sensitive open joint 10 is normally closed, but when heat is sensed, the heat-sensitive open joint 10 is connected to the discharge conduits 9A to 9A. The valve body opens due to water pressure in 9C. For example, when the temperature of the heat-sensitive open joint 10 exceeds a predetermined temperature (for example, 60 ° C.), the valve body in the heat-sensitive open joint 10 is opened. Then, the fire extinguishing agent is supplied to the plurality of fire extinguishing agent radiating parts 11 connected to the heat-sensitive open joint 10, and the fire extinguishing agent is radiated from the plurality of fire extinguishing agent radiating parts 11 to the fire extinguishing section.

The fire extinguishing agent radiating unit 11 radiates the fire extinguishing agent supplied from the tank unit 2 to extinguish the fire, and is connected to the tank unit 2 via the discharge conduits 9A to 9C. The fire extinguishing agent radiating unit 11 is composed of, for example, an open sprinkler head or a closed sprinkler head, and is installed in each of the fire extinguishing agents A1 to C2 according to the size of the fire extinguishing compartments A1 to C2. More specifically, the open sprinkler head is mounted on the ceiling surface via a heat-sensitive open joint, which is a fire detection unit, when a fire extinguishing section is wide and a plurality of sprinkler heads need to be mounted. On the other hand, in the closed sprinkler head, when the fire extinguishing section is narrow and the fire can be extinguished by one sprinkler head, instead of receiving the fire detection part separately, the heat sensitive part of the closed sprinkler head is used as a substitute for the detection part. It may be provided on the ceiling surface. The fire extinguishing sections A1 to C2 are set to be separate from the adjacent fire extinguishing sections.

Further, in the package type automatic fire extinguishing equipment 1, a pressure switch 4B for detecting the opening of the start valve 4 is provided between the fire extinguishing agent storage container 2A and the pressurizing gas container 3, and the pressure inside the discharge conduits 9A to 9C is reduced. Pressure detection sensors 21A to 21C for detecting this are provided in each of the discharge conduits 9A to 9C.

The control unit 20 controls the operations of the start valve 4, the selection valves 6A to 6C, and the shutoff valves 33A to 33C based on the signals from the pressure switch 4B and the pressure detection sensors 21A to 21C. Specifically, when the control unit 20 acquires a decompression signal from any of the pressure detection sensors 21A to 21C, the fire detection unit 10 detects a fire and the water stored in the secondary side piping is used as a fire extinguishing agent. It is determined that the radiation is emitted from the radiation unit 11. Then, the control unit 20 opens the start valve 4 and opens the selection valves 6A to 6C corresponding to the fire detection unit 10 that has detected the fire, and controls so that the fire extinguishing agent is radiated from the fire extinguishing agent radiating unit 11. To do. At this time, the control unit 20 closes the shutoff valves 33A to 33C connected to the discharge conduits 9A to 9C where the radiation is performed, and stops the water supply from the water supply device 31 to the discharge conduits 9A to 9C. Further, the control unit 20 detects that the start valve 4 is normally opened by the output from the pressure switch 4B, and if the start valve 4 is not normally opened, the control unit 20 and the display 40 indicate that fact. Is displayed.

Here, for example, when a fire is first detected in the fire detection unit 10 in the fire extinguishing section A1 of the system A, the control unit 20 continuously closes the selection valve 6A of the system A after opening the set continuous opening period RP1ref. The opening operation is performed, and then the intermittent opening operation of repeating the opening of the set intermittent opening period RP2ref and the closing of the set closing period CPref is controlled. Further, when the control unit 20 detects a fire in the fire detection unit 10 of the fire extinguishing section B1 of the different system B when the selection valve 6A that is initially operated is operating, the control unit 20 further operates the selection valve 6B of the different system B. However, when the intermittent opening operation is performed, it is controlled to open and close at the timing synchronized with the first activated selection valve 6A.

Specifically, FIG. 2 is a flowchart showing an operation example of the package-type automatic fire extinguishing equipment of FIG. 1, and FIG. 3 shows another fire extinguishing when a continuous opening operation is performed in one of the fire extinguishing sections of FIG. A timing chart showing the opening and closing of the selection valve when a fire breaks out in a compartment, FIG. 4 shows that a fire was detected in one of the fire extinguishing compartments in FIG. 1 while the intermittent opening operation was performed. It is a timing chart which shows the opening and closing of a selection valve at the time. In FIGS. 2 to 4, a case where a fire is first detected in the fire extinguishing section A1 of the system A and then a fire is detected in the fire extinguishing section B2 of the system B will be illustrated.

As shown in FIG. 2, when a fire first occurs in the fire extinguishing section A1, the fire sensing unit 10 is activated (step ST1), and the water stored in the discharge conduit 9A is radiated from the extinguishing agent radiating unit 11 (step ST1). Step ST2). As a result, a decompression signal is transmitted from the pressure detection sensor 21A to the control unit 20 (step ST3). When the fire detection in the fire extinguishing section A1 is the first fire detection (YES in step ST4), the control unit 20 opens the start valve 4 and the selection valve 6A and closes the shutoff valve 33A (step ST5). Then, the fire extinguishing agent stored in the tank unit 2 passes through the primary side pipes 8 of the discharge conduits 9A to 9C, the constant flow valve 5A and the selection valve 6A, and the fire extinguishing agent via the discharge conduit 9A and the heat-sensitive opening joint 10. It is radiated from the radiation unit 11.

At this time, the control unit 20 keeps opening the selection valve 6A until the continuous opening period RP1 that opens the selection valve 6A reaches the preset continuous opening period RP1ref (for example, 140 seconds) (step ST6). After that, when the continuous opening period RP1 becomes the set continuous opening period RP1ref (YES in step ST6), the control unit 20 closes the selection valve 6A (step ST7). When there is a remaining amount of fire extinguishing agent in the tank unit 2 (YES in step ST8), the control unit 20 closes the selection valve 6A until the closing period CP reaches the set closing period CPref (for example, 30 seconds) (step ST9). ). When the closing period CP becomes the set closing period CPref (YES in step ST9), the continuous opening operation of the selection valve 6A is completed.

After the continuous opening operation is completed, the control unit 20 controls the selection valve 6A so as to perform the intermittent opening operation of the fire extinguishing agent. That is, the control unit 20 opens the selection valve 6A (step ST10), and continues to open the selection valve 6A until the intermittent opening period RP2 reaches the set intermittent opening period RP2ref (for example, 30 seconds) (step ST11). The set intermittent opening period RP2ref is set in the control unit 20 to be shorter than the set continuous opening period RP1ref. When the intermittent opening period RP2 becomes the set intermittent opening period RP2ref (YES in step ST11), the control unit 20 closes the selection valve 6A (step ST7). After that, the control unit 20 controls to perform an intermittent opening operation that repeats the opening of the set intermittent opening period RP2ref and the closing of the set closing period CPref until the fire extinguishing agent in the tank unit 2 runs out (steps ST7 to ST11, See FIGS. 3 (a) and 4 (a)).

Next, a case where a fire is detected in the heat-sensitive open joint 10 in the fire extinguishing section B1 of the different system B while the selection valve 6A that is operated first is operating will be described. Also in this case, the heat-sensitive open joint 10 of the fire extinguishing section B1 of the system B operates (step ST1), and water is discharged from the fire extinguishing agent radiating unit 11 (step ST2). Then, a decompression signal is transmitted from the pressure detection sensor 21B to the control unit 20 (step ST3). At this time, the control unit 20 determines that the fire detection of the system B is not the first fire detection (NO in step ST4), opens the selection valve 6B, and closes the shutoff valve 33B (step ST21).

Next, the control unit 20 determines whether the selection valve 6A of the system A in which the first fire detection is performed is performing the continuous opening operation or the intermittent opening operation (step ST22). When the continuous opening operation is performed in the fire extinguishing section A1, the control unit 20 controls so that the continuous opening operation is performed first in the fire extinguishing section B1 as well, assuming that the fire momentum is strong.

At this time, the control unit 20 has a function of setting the continuous opening period RP1 according to the delay period DP1 from the opening of the selection valve 6A to the opening of the selection valve 6B (steps ST23 to ST25). Specifically, as shown in FIGS. 3 (b) to 3 (e), the control unit 20 measures the delay period DP1 from the opening of the selection valve 6A to the opening of the selection valve 6B. Then, the predicted closing period from the closing of the selection valve 6B to the opening in synchronization with the selection valve 6A is calculated. As shown in FIGS. 3B to 3D, when the predicted closing period is equal to or longer than the set period Pref (for example, 10 seconds) (YES in step ST23), the control unit 20 has a continuous opening period RP1 set as a continuous opening period. The selection valve 6B is controlled so as to be RP1ref (step ST24). Then, when the continuous opening period RP1 becomes the set continuous opening period RP1ref (YES in step ST24), the control unit 20 closes the selection valve 6B (step ST26) and confirms the remaining amount of the fire extinguishing agent. (Step ST27). After that, the control unit 20 controls the selection valve 6B so that the intermittent opening operation is performed at the timing synchronized with the first activated selection valve 6A (steps ST28 to ST30).

On the other hand, as shown in FIG. 3E, when the predicted closing period is smaller than the set period Pref (NO in step ST23), the control unit 20 synchronizes with the timing at which the first selected valve 6A is closed in the intermittent opening operation. And close (YES in step ST25). This set delay period DP1ref is set based on the time required when the opening operation and the closing operation of the selection valves 6A to 6C are continuously performed. That is, a predetermined time (for example, about 4 seconds) is required for each of the opening operation and the closing operation of the selection valves 6A to 6C. As described above, if the closing period CP is shortened to synchronize the opening timings of the selection valve 6A and the selection valve 6B, the opening operation is performed again before the closing operation of the selection valve 6B is completed, and the valve Problems such as vibration may occur. Therefore, when the predicted closing period is equal to or less than the set period Pref, the closing timings of the selection valve 6A and the selection valve 6B are not synchronized, but the closing timings are synchronized. After that, the control unit 20 controls so that the selection valve 6A and the selection valve 6B perform an intermittent opening operation by opening and closing at the same timing (steps ST26 to ST30).

Next, when the selection valve 6A opened first is performing the intermittent opening operation (NO in step ST22), the control unit 20 controls the selection valve 6B in the fire extinguishing section B1 to start from the intermittent opening operation as well. .. In this case, after the continuous opening operation is performed in the fire extinguishing section A1 of the system A, the fire tends to be extinguished. Therefore, the fire extinguishing activity can be efficiently performed by performing the intermittent opening operation without continuously opening the fire extinguishing section B1.

At this time, the control unit 20 has a function of setting the first intermittent opening period RP2 according to the delay period DP2 from the start of the intermittent opening operation of the selection valve 6A to the opening of the selection valve 6B (step ST31, step ST31, ST32). That is, the control unit 20 measures the delay period DP2 from the start of the intermittent radiation of the selection valve 6A to the opening of the selection valve 6B. Then, the control unit 20 calculates the predicted closing period from the closing of the selection valve 6B to the opening in synchronization with the selection valve 6A based on the delay period DP2. As shown in FIGS. 4 (b) to 4 (d), when the predicted closing period is equal to or longer than the set period Pref (for example, 10 seconds) (YES in step ST31), the control unit 20 opens the selection valve 6B with the intermittent opening period RP2. Only open (step ST32) and the selection valve 6B is closed (step ST26). After that, the control unit 20 controls the selection valve 6B so that the selection valve 6B is opened at a timing synchronized with the first activated selection valve 6A (steps ST28 to 30).

On the other hand, as shown in FIG. 3E, when the predicted closing period is smaller than the set period Pref (NO in step ST31), the control unit 20 closes the selection valve 6B in synchronization with the timing at which the selection valve 6A closes. (Step ST33). In this case as well, as described above, it is possible to prevent the opening operation from being performed again before the closing operation of the selection valve 6B is completed.

According to the above embodiment, when the control unit 20 first detects a fire, the selection valve 6A is controlled so that the intermittent opening operation is performed after the continuous opening operation, thereby suppressing the spread of the fire in the fire section. can do. That is, the package-type automatic fire extinguishing equipment 1 performs fire extinguishing activities using a limited amount of fire extinguishing agent in the tank unit 2. Here, when the fire extinguishing agent is radiated from the fire extinguishing agent radiating unit 11, the fire extinguishing agent may not be directly applied to the fire source, and even if the fire of the combustible material is temporarily extinguished, the fire may occur again. However, as in the conventional case, if all the fire extinguishing agents in the tank unit 2 are continuously radiated at one time, in the event of another fire, the re-radiating fire extinguishing agent remains in the tank unit 2. Because there is no fire, the fire cannot be suppressed.

On the other hand, in the package type automatic fire extinguishing equipment 1 of FIG. 1, all the fire extinguishing agents in the tank unit 2 are not radiated during the continuous opening period RP1, and the fire extinguishing agents are intermittently radiated after the lapse of the continuous opening period RP1. It is controlled like this. As a result, even if the fire continues again after the fire extinguishing operation in the fire extinguishing section (fire extinguishing section), the fire extinguishing agent can be re-radiated and the fire extinguishing agent can be effectively used.

Further, when a fire is detected in the system B after the selection valve 6A is activated for the first time, the selection valve 6A and the selection valve 6B perform an intermittent opening operation in synchronization with each other, whereby the selection valve 6A and the selection valve 6B are operated. The fire extinguishing effect of the entire fire can be enhanced as compared with the case where the radiation control is performed independently.

Further, when the selection valve 6A in which the first radiation was performed is continuously radiating, when the next selection valve 6B is also continuously radiating, different fire extinguishing is performed in a short period after the fire is detected in the fire extinguishing section A1. When a fire is detected in the section B1, it is assumed that the momentum of the fire is strong, and continuous radiation can be performed in the fire extinguishing section B1 to surely suppress the spread of the fire. Furthermore, when the selection valve 6A where the first radiation was performed is performing intermittent radiation, when the next selection valve 6B is also performing intermittent radiation, it is assumed that the momentum of the fire has subsided to some extent, and the fire extinguishing agent is efficient. It is possible to suppress the spread of fire while using it well.

The embodiment of the present invention is not limited to the above embodiment. For example, in FIGS. 3 and 4, the case where the continuous opening period RP1 is 140 seconds, the closing period CP is 30 seconds, and the intermittent opening period RP2 is 30 seconds is illustrated, but the case is not limited to this. It can be set as appropriate according to. Further, although the case where the closing period CP in the continuous opening operation and the closing period CP in the intermittent opening operation are the same is illustrated, different length periods may be set.

Further, although the case where the package type automatic fire extinguishing system 1 of FIG. 1 is a wet fire extinguishing system in which the discharge conduits 9A to 9C are filled with water is illustrated, the discharge conduits 9A to 9C are filled with water. It does not have to be (dry fire extinguishing equipment). Further, in FIG. 1, a case where the heat-sensitive open joint 10 is interposed between the tank unit 2 and the fire extinguishing agent radiating unit 11 is illustrated, but instead of this, an on-off valve whose opening and closing is controlled by the control unit 20 is used. You may use it. Further, in FIG. 1, a case where three discharge conduits 9A to 9C are branched and connected to the tank unit 2 is illustrated, but the tank unit 2 is connected to each of the plurality of discharge pipes 9A to 9C. It may be a structure. Even in these cases, the fire extinguishing agent can be efficiently used to carry out the fire extinguishing activity by intermittently radiating the fire extinguishing agent.

Further, in the embodiment of the present invention, the operation of the heat-sensitive open joint 10 is detected when the pressure in the pipe is reduced by monitoring the pressure in the pipe, but the operation of the heat-sensitive open joint 10 is detected by the flow switch. You may. Further, in the embodiment of the present invention, the case where the fire detection unit 10 is composed of the heat-sensitive open joint 10 is illustrated, but it may be composed of, for example, a smoke detector and a heat detector.

1 Package type automatic fire extinguishing equipment, 2 tank unit, 2A fire extinguishing agent storage container, 3 pressurizing gas container, 4 start valve, 4A pressure regulator, 4B pressure switch, 5A to 5C constant flow valve, 6A to 6C selection valve, 7A ~ 7C check valve, 8 primary side piping, 9A ~ 9C discharge conduit, 10 fire detection part (heat sensitive open joint), 11 fire extinguishing agent radiation part, 20 control part, 21A ~ 21C pressure detection sensor, 30 water supply pipe, 31 Water supply device, 32A to 32C check valve, 33A to 33C check valve, 40 display, A to C system, A1 to C2 fire extinguishing section, CP closing period, CPref setting Closing period, DP1, DP2 delay period, DP1ref, DP2ref setting Delay period, Pref setting period, RP1 continuous open period, RP1ref set continuous open period, RP2 intermittent open period, RP2ref set intermittent open period.

Claims (2)

A tank unit that stores fire extinguishing agents and
A plurality of discharge conduits that branch from the tank unit into a plurality of systems and supply a fire extinguishing agent from the tank unit.
A plurality of fire extinguishing agent emitting parts connected to each of the plurality of discharging conduits and radiating the fire extinguishing agent flowing through the discharging conduits.
A plurality of selection valves provided for each of the plurality of discharge conduits and controlling the supply of the fire extinguishing agent from the tank unit to the fire extinguishing agent radiating unit.
A plurality of fire detection units that detect a fire at the installation location of the fire extinguishing agent radiation unit,
It has a control unit that controls the operation of the selection valve based on the detection of a fire by the fire detection unit.
The control unit
First the selection valve of the system a fire has been detected, after the continuous opening operation, controlled so as to perform Intermittent opening operation in the fire sensing unit,
If a fire is detected in the fire detection unit of a different system while the first selected valve is performing the intermittent opening operation, the selection valve of the different system is controlled to open and close so as to perform the intermittent opening operation. A packaged automatic fire extinguishing system that features this. The control unit causes the selection valve of a different system to perform a continuous opening operation when a fire is detected in the fire sensing unit of a different system while the first operating selection valve is performing a continuous opening operation. The package-type automatic fire extinguishing system according to claim 1, wherein the fire extinguishing system is controlled.

Images