JPH0634839B2 - Automatic fire extinguisher - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic fire extinguisher for extinguishing a fire by using a fire extinguishing fluid in a fire extinguishing fluid storage tank.

(Prior Art) Conventionally, this type of automatic fire extinguisher has a fire detector and a fire extinguisher fluid jet head installed as a pair on the ceiling of the place where the fire should be extinguished, and a fire extinguishing fluid storage tank is provided for each pair to extinguish the fire. The extinguishing fluid was supplied to the fluid ejecting head.

(Problems to be solved by the invention) However, in such a structure, when a fire detector and a fire extinguisher fluid jet head must be provided at a plurality of places in an inn or the like, as many fire extinguishing fluid storage tanks are provided. However, there is a problem that the cost becomes high.

Further, in such a structure, there is a problem that the fire cannot be extinguished when the starting means of the fire extinguishing fluid storage tank fails and is inoperative.

An object of the present invention is to reduce the number of fire extinguishing fluid storage tanks even if a pair of a fire detector and a fire extinguishing fluid ejection head are installed at a plurality of locations, and when the extinguishing fluid cannot be supplied from the fire extinguishing fluid storage tank. However, it is to provide an automatic fire extinguisher capable of extinguishing a fire without any trouble.

(Means for Solving Problems) A configuration of the present invention for achieving the above object will be described with reference to FIGS. 1 to 6 corresponding to the embodiments.

The automatic fire extinguishing apparatus according to the first aspect of the present invention includes a fire detector 3 and a fire extinguishing fluid ejecting head 4 which are installed in pairs on the ceiling of each place where fire extinguishing is to be performed in the building 1, and the extinguishing fluid ejecting heads. A common extinguishing fluid storage tank 5 that is commonly installed to the heads 4 and supplies extinguishing fluid to these extinguishing fluid ejecting heads 4 via branch pipes 7, respectively, and to any part of each of the branch pipes 7. The automatic open / close valve 10 provided respectively, the manual open / close valve 24 connected in parallel to each of the automatic open / close valves 10, and the fire detecting the fire when any of the fire detectors 3 detects the fire. The controller 12 for giving a valve opening command to the automatic on-off valve 10 for supplying the extinguishing fluid to the extinguishing fluid ejecting head 4 paired with the detector 3, and a larger capacity than the extinguishing fluid storage tank 5 are also provided. The installed separately Te automatic opening and closing valve 1
0 and the pipe 18 and the check valve 2 without passing through the manual opening / closing valve 24.
The water storage tank 13 is connected to each of the fire extinguishing fluid ejecting heads 4 through 5.

An automatic fire extinguisher according to a second aspect of the present application is a fire detector 3 and a fire extinguishing fluid jet head 4, which are installed in pairs on the ceiling of each place where the fire should be extinguished in the building 1, and the above extinguishing fluid jets. A common fire extinguishing fluid storage tank 5 that is installed in common to the heads 4 and supplies the extinguishing fluid to these extinguishing fluid ejecting heads 4 via branch pipes 7, respectively.
The automatic opening / closing valve 10 provided in any part of each of the branch pipes 7, the manual opening / closing valve 24 connected in parallel to each of the automatic opening / closing valves 10, and any one of the fire detectors 3 fire. And a controller 12 for giving a valve opening command to the automatic on-off valve 10 for supplying a fire extinguishing fluid to the fire extinguishing fluid ejecting head 4 paired with the fire detector 3 that has detected a fire. Fire extinguishing fluid storage tank 5
The automatic opening / closing is provided with a water storage layer 13 which is separately installed with a larger capacity and which is connected to each branch pipe through the pipe 18 and the check valve 25 without passing through the automatic opening / closing valve 10 and the manual opening / closing valve 24. It is characterized in that the pipe 7 is filled with the extinguishing fluid in advance up to the front of the valve 10 and the manual opening / closing valve 24.

(Operation) According to the first and second inventions, when the specific fire detector 3 is activated, the controller 12 controls the automatic opening / closing valve 10 for controlling the fire extinguishing fluid jet head 4 corresponding to the fire detector 3. An opening command is issued and the extinguishing fluid is supplied from the common extinguishing fluid storage tank 5.

When the automatic on-off valve 10 is out of order, the fire-extinguishing fluid is supplied from the common fire-extinguishing fluid storage tank 5 by opening the manual on-off valve 24 corresponding to the automatic on-off valve 10.

Therefore, the fire can be extinguished even when the automatic on-off valve 10 is out of order, and the reliability of the automatic fire extinguisher, which requires strict reliability, can be further improved.

Further, even if the supply of the fire-extinguishing fluid from the fire-extinguishing fluid storage tank 5 is completed, if the fire cannot be extinguished, the fire-extinguishing water is supplied from the water tank 13 having a larger capacity than the tank 5. Therefore, it becomes possible to continuously extinguish the fire, and it is possible to prevent the initial fire extinguishing from ending without extinguishing the fire.

Alternatively, if it is known from the beginning that the extinguishing fluid cannot be extinguished with the volume of the extinguishing fluid in the extinguishing fluid storage tank 5, the extinguishing water may be supplied from the water tank 13 having a larger capacity than the tank 5 to extinguish the extinguishing water from the beginning. it can.

Further, even when the extinguishing fluid cannot be supplied due to a failure on the extinguishing fluid storage tank 5 side, the extinguishing water is supplied from the water tank 13.

Moreover, the water storage tank 13 includes an automatic opening / closing valve 10 and a manual opening / closing valve 2.
Since the fire extinguishing fluid ejecting head 4 is connected without passing through, the fire extinguishing water can be extinguished by supplying the fire extinguishing water from the water tank 13 even if the automatic on-off valve 10 and the manual on-off valve 24 are out of order.

Therefore, according to the present invention, it is possible to further improve the reliability of the automatic fire extinguisher which requires strict reliability.

In particular, as in the second aspect of the present invention, when the pipe 7 is filled with the extinguishing fluid in front of the automatic opening / closing valve 10 and the manual opening / closing valve 24, the extinguishing fluid is first supplied from the extinguishing fluid storage tank 5. The fire-extinguishing fluid in the tank 5 can be used to fill the space in the pipe 7, and the amount of the fire-extinguishing fluid ejected from the fire-extinguishing fluid ejecting head 4 can be suppressed from decreasing.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention. As shown in the figure, each room 2 is the place where the fire in building 1 should be extinguished.
A pair of a fire detector 3 and a fire extinguishing fluid ejecting head 4 is installed on the ceiling of each. A fire-extinguishing fluid storage tank 5 is commonly installed for each fire-extinguishing fluid ejecting head 4, and the fire-extinguishing fluid is supplied to each fire-extinguishing fluid ejection head 4 through a common pipe 6 and respective branch pipes 7. The extinguishing fluid storage tank 5 is provided with a pressurizing cylinder 8 for applying a pressure in the tank 5 and a starting means 9 for starting the pressurizing cylinder 8 adjacent to each other. Each branch pipe 7 is provided with an automatic open / close valve 10. These automatic open / close valves 10
A manual on-off valve 24 is connected in parallel to each of the above.
A controller 12 to which a fire detection signal of each fire detector 3 is given via a signal line 11 is installed adjacent to the fire extinguishing fluid storage tank 5. When any one of the fire detectors 3 detects a fire, the controller 12 gives a command to start the supply of the fire extinguishing fluid to the starting means 9 and the fire extinguishing fluid ejecting head paired with the fire detector 3 that has detected the fire. A valve opening command is given to the automatic opening / closing valve 10 of No. 4.

Further, outside the building 1 or the like, a water tank 13 having a larger capacity than the fire extinguisher fluid storage tank 5, a pump 14 for pumping up and supplying the fire extinguishing water in the water tank 13 under pressure, and starting the supply of the fire extinguishing fluid to the pump 14. A controller 15 that gives a command is installed. On the outer surface of the building 1, a start push button 17 that gives a start command to the controller 15 via a signal line 16 is installed.
The fire extinguishing water from the water tank 13 passes through the pipe 18 and the manual open / close valve 21, and then the common pipe 6, the automatic open / close valve 10 and the manual open / close valve 2
4 is supplied to each fire extinguishing fluid ejecting head 4 via each check valve 25 without passing through 4.

In such a device, when a fire occurs in any of the rooms 2 and the fire is detected by the fire detector 3 in the room 2, a fire detection signal is given to the controller 12 via the signal line 11. . As a result, the controller 12 gives a command to start the extinguishing fluid supply to the starting means 9, so that the extinguishing fluid is started, and the pressurized gas of the pressurized cylinder 8 is supplied to the extinguishing fluid containing tank 5 so that The supply of extinguishing fluid is started. Further, the controller 12 simultaneously issues a valve opening command to the automatic opening / closing valve 10 of the fire extinguishing fluid ejecting head 4 paired with the fire detector 3 that has detected a fire, and the valve is opened. The fire extinguishing fluid jet head 4 is placed in the room 2 where the fire is caused
The injection of extinguishing fluid starts from.

At this time, if the automatic opening / closing valve 10 is out of order, the manual opening / closing valve 24 corresponding to the automatic opening / closing valve 10 is opened. In this way, the extinguishing fluid can be supplied from the common extinguishing fluid storage tank 5 via the manual on-off valve 24. Therefore, the fire can be extinguished even when the automatic on-off valve 10 is out of order, and the reliability of the automatic fire extinguisher, which requires strict reliability, can be further improved.

As described above, when the controller 12 issues a command to the starting means 9 by the fire detection signal from the fire detector 3 and the supply of the fire extinguishing fluid from the fire extinguishing fluid containing tank 5 is started, When the fire cannot be extinguished even after the supply of the extinguishing fluid from the tank 5 is completed, manually push the starting pump 17,
A start command is given to the controller 15 via the signal line 16 and the manual on-off valve 21 is opened. The controller 15 issues a fire extinguishing fluid supply start command to the pump 1 by the start-up command to start up, the supply of fire extinguishing water from the water tank 13 is started, and the fire extinguishing water jet head 4 of each room 2 ejects fire extinguishing water. Is done.

Further, when the controller 12 first gives a command to start the extinguishing fluid supply to the starting means 9, even if the extinguishing fluid cannot be supplied from the extinguishing fluid storage tank 5 due to a failure of the starting means 9, the starting button 17 is pressed. Fire water can be supplied from the water tank 13 by pressing and opening the manual on-off valve 21. Therefore, the fire can be extinguished even when the fire extinguishing fluid storage tank 5 side is out of order.

Furthermore, when it is found from the beginning that the capacity of the fire extinguishing fluid storage tank 5 is insufficient, the fire extinguishing water can be supplied from the beginning from the water tank 13 having a larger capacity than the tank 5.

Moreover, the water storage tank 13 includes an automatic opening / closing valve 10 and a manual opening / closing valve 2.
Since the fire extinguishing fluid ejecting head 4 is connected to each of the fire extinguishing fluid ejecting heads 4 without passing through, the fire can be extinguished by supplying fire extinguishing water from the water tank 13 even if the automatic on-off valve 10 and the manual on-off valve 24 are out of order.

Therefore, according to the present invention, it is possible to further improve the reliability of the automatic fire extinguisher which requires strict reliability.

Although not shown, an automatic opening / closing valve is connected in parallel to the manual opening / closing valve 21, a control signal is output from the controller 12 to the automatic opening / closing valve and the controller 15, and the automatic opening / closing valve is opened.
When the controller 15 issues a start-up command, fire extinguishing water can be automatically provided from the water tank 13.

Further, the fire extinguishing fluid storage tank 5 may be of a pressure accumulating type.
In this case, the pressure cylinder 8 and the starting means 9 are unnecessary.

FIG. 2 shows a second embodiment of the present invention. In this embodiment, a fire-extinguishing fluid spare tank 27 is installed on the upper part of a building, and the bottom of the spare tank 27 and the branch pipe 7 in front of the automatic opening / closing valve 10 are connected by a pipe 28, and the automatic opening / closing valve 10 is connected.
Also, an example is shown in which the branch pipe 7 and the common pipe 6 up to the manual on-off valve 24 are filled with the extinguishing fluid in the auxiliary tank 27 in advance and kept standing by in a stationary state. The other structure is similar to that of the first embodiment shown in FIG. In this case, the extinguishing fluid ejection head 4 is shown as an open type.

By doing so, pressure loss at the start of supply of the extinguishing fluid from the extinguishing fluid storage tank 5, which would occur when the branch pipe 7 and the common pipe 6 are empty, is prevented, and the extinguishing inside the extinguishing fluid storage tank 5 is prevented. The fluid can be fully utilized for extinguishing fires.

FIG. 3 shows a third embodiment of the present invention. In this embodiment, in the case of the structure shown in FIG. 1 and the closed type in which the fire extinguishing fluid ejecting head 4 is normally closed and is opened by the heat in the event of a fire, all common pipes 6 and all This is an example in which fire extinguishing water is supplied to the branch pipe 7 from the water storage tank 13 in advance and the branch pipe 7 is made to stand by in a stationary state.

By doing so, in addition to the effect in the case of FIG. 2 described above, the pressure loss from the automatic on-off valve 10 or the manual on-off valve 24 to the fire-extinguishing fluid ejection head 4 also disappears, and the fire-extinguishing fluid storage tank 5 can be more effectively operated. Fire extinguishing fluid can be supplied.

(Effects of the Invention) As described above, in the first and second aspects of the present invention, the extinguishing fluid storage tank is provided in common for each extinguishing fluid ejection head. The equipment cost can be remarkably reduced as compared with the conventional one which is provided with.

Further, the common extinguishing fluid storage tank is connected to each extinguishing fluid ejecting head via a branch pipe, and each branch pipe is provided with an automatic opening / closing valve, and these automatic opening / closing valves are manually connected in parallel. Since the on-off valve is connected, when supplying the fire extinguishing fluid only to the specific place where the fire should be extinguished in the building, if the automatic on-off valve fails, open the manual on-off valve in parallel with it and open the common The fire-extinguishing fluid can be supplied from the fire-extinguishing fluid storage tank, and the reliability of the automatic fire extinguisher, which requires strict reliability, can be improved.

Further, since a water tank having a larger capacity than the fire-extinguishing fluid storage tank is separately provided, if the extinguishing fluid cannot be extinguished even if the supply of the fire-extinguishing fluid from the fire-extinguishing fluid storage tank is completed, the water must be supplied from the water storage tank. Therefore, it is possible to continuously extinguish the fire, and it is possible to prevent the initial fire extinguishing from ending without extinguishing the fire.

Alternatively, if it is known from the beginning that the extinguishing fluid cannot be completely extinguished with the volume of the extinguishing fluid in the extinguishing fluid containing tank, the extinguishing water can be supplied from the beginning by supplying the extinguishing water from a water tank having a larger capacity than the tank.

Further, even when the extinguishing fluid cannot be supplied due to a failure of the extinguishing fluid storage tank side, the extinguishing water can be extinguished by supplying the extinguishing water from the water tank.

Moreover, since the water storage tank is connected to each fire extinguishing fluid jet head without passing through the automatic opening / closing valve and the manual opening / closing valve, even if these automatic opening / closing valve and manual opening / closing valve fail, the supply of fire extinguishing water from the water tank You can extinguish the fire with.

Therefore, according to the present invention, it is possible to further improve the reliability of the automatic fire extinguisher which requires strict reliability.

In particular, in the second aspect of the invention, the pipe is filled with the extinguishing fluid in advance before the automatic opening / closing valve and the manual opening / closing valve. Therefore, when the extinguishing fluid is first supplied from the extinguishing fluid storage tank, The extinguishing fluid is used to fill the space in the pipe, and it is possible to prevent the amount of the extinguishing fluid ejected from the extinguishing fluid ejecting head from being reduced, and to effectively utilize the extinguishing fluid in the tank. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a first embodiment of an automatic fire extinguisher according to the present invention, and FIGS. 2 and 3 are main parts of second and third embodiments of the automatic fire extinguisher according to the present invention. FIG. 1 ... Building, 2 ... Room, 3 ... Fire detector, 4 ... Extinguishing fluid jet head, 5 ... Extinguishing fluid storage tank, 6 ...
Common piping, 7 …… Branching piping, 8 …… Pressure cylinder, 9 ……
Starting means, 10 ... Automatic on-off valve, 12 ... Controller, 13
…… Water tank, 14 …… Pump, 15 …… Controller, 17…
… Start push button, 19, 25 …… Check valve, 21 …… Manual open / close valve, 24 …… Manual open / close valve, 27 …… Spare tank, 2
8 …… Piping.

Claims (2)

[Claims] 1. A fire detector and a fire extinguishing fluid jet head, which are installed in pairs on the ceiling of each place where a fire should be extinguished in a building, and these fire extinguishing fluid jet heads are commonly installed for each of these fire extinguishing fluid jet heads. A common extinguishing fluid storage tank that supplies extinguishing fluid to the extinguishing fluid ejecting head via branch pipes, respectively, an automatic open / close valve provided in any part of each of the branch pipes, and parallel to each of the automatic open / close valves. Manual opening / closing valve connected and automatic opening / closing for supplying a fire extinguishing fluid to the fire extinguishing fluid ejecting head paired with the fire detector detecting a fire when any of the fire detectors detects a fire A controller that gives a valve opening command to the valve, and a pipe and a check valve that are separately installed with a capacity larger than the fire extinguishing fluid storage tank without passing through the automatic opening / closing valve and the manual opening / closing valve. Automatic fire extinguishing apparatus comprising a reservoir for the connected to each extinguishing fluid ejecting head Te. 2. A fire detector and a fire extinguishing fluid jet head, which are installed in pairs on the ceiling of each place where the fire should be extinguished, and these fire extinguishing fluid jet heads are commonly installed to these fire extinguishing fluid jet heads. A common extinguishing fluid storage tank that supplies extinguishing fluid to the extinguishing fluid ejecting head via branch pipes, respectively, an automatic open / close valve provided in any part of each of the branch pipes, and parallel to each of the automatic open / close valves. Manual opening / closing valve connected and automatic opening / closing for supplying a fire extinguishing fluid to the fire extinguishing fluid ejecting head paired with the fire detector detecting a fire when any of the fire detectors detects a fire A controller that gives a valve opening command to the valve, and a pipe and a check valve that are separately installed with a capacity larger than the fire extinguishing fluid storage tank without passing through the automatic opening / closing valve and the manual opening / closing valve. And a water tank connected to each of the fire-extinguishing fluid jet heads, wherein the pipe is filled with the fire-extinguishing fluid in front of the automatic on-off valve and the manual on-off valve. .