JPS63226376A - Simple automatic fire extinguishing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a simple automatic fire extinguishing system that performs first II fire extinguishing using a fire extinguishing fluid in a fire extinguishing fluid storage tank.

(Prior art) Conventionally, this type of simple automatic fire extinguishing system has a fire detector and a fire extinguishing fluid injection head installed as a pair on the ceiling of a place where fire extinguishing is to be carried out in a building, and a fire extinguishing fluid storage tank is installed between these pairs to extinguish the fire. Fire extinguishing fluid was supplied to the fluid jet head.

(Problem to be Solved by the Invention) However, with this structure, if a pair of flame detectors and extinguishing fluid injection heads must be installed in multiple locations at an inn, etc., the number of extinguishing fluid storage tanks equal to the number of installation locations is required. However, there was a problem in that the cost was high.

An object of the present invention is to provide a simple automatic fire extinguishing system that can reduce the number of extinguishing fluid storage tanks even if pairs of fire detectors and extinguishing fluid injection heads are installed at multiple locations.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 8, which correspond to embodiments.

The first invention of the present application includes a fire detector 3 and a fire extinguishing fluid jetting head 4 installed in pairs on the ceiling of each place in a building 1 where fire extinguishing is to be performed, and each of the fire extinguishing fluid jetting heads 4.
A common extinguishing fluid storage tank 5 that is installed in common with the extinguishing fluid injection heads 4 and supplies extinguishing fluid to these extinguishing fluid injection heads 4 via piping 6.7, and when any of the fire detectors 3 detects a fire. and a controller 12 for issuing a command to start supplying the extinguishing fluid from the extinguishing fluid storage tank 5.

The second invention of the present application includes a fire detector 3 and a fire extinguishing fluid jetting head 4 installed in pairs on the ceiling of each place in the building 1 where fire extinguishing is to be performed, and each of the fire extinguishing fluid jetting heads 4.
A common extinguishing fluid storage tank 5 that is installed in common with the extinguishing fluid injection heads 4 and supplies extinguishing fluid to these extinguishing fluid injection heads 4 via branch piping 7, and a common extinguishing fluid storage tank 5 that is installed in any part of each of the branch piping 7 an automatic on-off valve 1o, and an automatic valve 1o for supplying extinguishing fluid to the extinguishing fluid injection head 4 paired with the fire detector 3 that detected the fire when any one of the fire detectors 3 detects a fire; The controller 12 provides a valve opening command to the on-off valve 10.

(Function) According to the first invention, the extinguishing fluid is supplied to each extinguishing fluid injection head 4 from the common extinguishing fluid storage tank 5.

According to the second invention, the extinguishing fluid is supplied to each extinguishing fluid injection head 4 from the common extinguishing fluid storage tank 5, and the extinguishing fluid is paired with the fire detector 3 that detects the fire. The extinguishing fluid is ejected only from the extinguishing fluid injection head 4 that is present.

(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 diagram, each room 2 is a place where fire extinguishment should be carried out in the building 1.
A pair of fire detectors 3 and fire extinguishing fluid injection heads 4 are respectively installed on the ceiling of the building.

A fire extinguishing fluid storage tank 5 is commonly installed for each fire extinguishing fluid jet head 4, and fire extinguishing fluid is supplied to each fire extinguishing fluid jet head 4 via a common pipe 6 and a branch pipe 7. The extinguishing fluid storage tank 5 is provided with a pressurized cylinder 8 that applies pressure in the tank 5 and a starting means 9 that starts the pressurized cylinder 8 adjacent to each other. Each branch pipe 7 is provided with an automatic opening 111 valve 10, respectively.

A controller 12 to which a fire detection signal from each fire detector 3 is applied via a signal line 11 is installed adjacent to the fire extinguishing fluid storage tank 5. The controller 12 gives a command to start the supply of extinguishing fluid to the starting means 9 when any of the fire detectors 3 detects a fire, and also sends an extinguishing fluid injection head paired with the fire detector 3 that has detected the fire. The stroke is made to give a valve opening command to the automatic opening/closing valve 10 of No. 4.

Also, outside the building 1, there is a fire extinguishing fluid supply source 13 for secondary fire extinguishing consisting of a water tank, a pump 14 that pumps up and pressurizes extinguishing fluid such as water in the extinguishing fluid supply source 13, and a pump A controller 15 is installed at 14 to receive a command to start supplying fire extinguishing fluid. A signal line 1 is connected to the controller 15 on the outside of the building 1.
A start pushbutton 17 is provided for giving a start command via 6. The fire extinguishing fluid from the fire extinguishing fluid supply source 13 for secondary fire extinguishing is supplied to the common pipe 6 via a pipe 18. At this time, in order to prevent mutual backflow, check valves 19 and 2 are installed near the connection points of the pipes 6 and 18, respectively.
0 is connected. Further, a manual on-off valve 21 is provided in the middle of the pipe 18.

In such a device, when a fire occurs in one of the rooms 2 and the fire is detected by the fire detector 3 of that room 2, a fire detection signal is given to the controller 12 via the signal line 11. . As a result, a command to start supplying fire extinguishing fluid is given from the controller 12 to the starting means 9 to perform startup, and the pressurized gas in the pressurized cylinder 8 is supplied to the fire extinguishing fluid storage tank 5 and from the fire extinguishing fluid storage tank 5. Supply of fire extinguishing fluid is started. Further, the controller 12 simultaneously issues a valve opening command to the automatic opening/closing valve 1o of the fire extinguishing fluid injection head 4 paired with the fire detector 3 that detected the fire, and the valve is opened. As a result, the fire extinguishing fluid starts to be ejected from the fire extinguishing fluid jetting head 4 into the room 2 where the fire has occurred.

If the fire cannot be extinguished even after the supply of extinguishing fluid from the extinguishing fluid storage tank 5 is finished, press the start button 17 manually.
A start command is given to the controller 15 via the signal line 16, and the manual opening/opening valve 21 is opened. The controller 15 issues a command to start supplying extinguishing fluid to the pump 14 according to the start command, and the pump 14 is started.
The supply of extinguishing fluid from the extinguishing fluid supply source 13 is started,
The injection of extinguishing fluid from the extinguishing fluid supply head 4 in the fire room 2 is resumed.

Although not shown, an automatic on-off valve is provided in parallel to the manual on-off valve 21, and a control signal is sent from the controller 12 to this automatic on-off valve and the controller 15 to open the automatic on-off valve. When the controller 15 issues a start command, the extinguishing fluid can be automatically provided from the extinguishing fluid supply source 13.

Further, the fire extinguishing fluid storage tank 5 may be of a pressure accumulating type.

In this case, the pressurized cylinder 8 and the starting means 9 become unnecessary.

FIG. 2 shows a second embodiment of the invention. In this embodiment, the extinguishing fluid supply source 13 for secondary fire extinguishing is constituted by a tank, and accordingly, a pressurized cylinder 22 that applies pressure and force to the inside of the tank and its activation means 23 are provided. 23 is different from the first embodiment in that a command to start supplying fire extinguishing fluid is given from the controller 15.

Note that the extinguishing fluid supply source 13 may be of an accumulating type. In this case, the pressurized cylinder 22. The starting means 23 becomes unnecessary.

FIG. 3 shows a third embodiment of the present invention. This embodiment differs from the first embodiment in that a manual on-off valve 24 is connected in parallel to each automatic on-off valve 10.

By providing the manual on-off valve 24 in parallel with the automatic on-off valve 10 in this way, when the automatic on-off valve 10 is inactive, opening the manual on-off valve 24 allows the fire extinguishing fluid storage tank 5 or the secondary fire extinguishing tank to be opened. Initial fire extinguishment can be performed by supplying the fire extinguishing fluid from the fire extinguishing fluid supply source 13. Further, in the case of a fire where the capacity of the fire extinguishing fluid storage tank 5 is insufficient from the beginning, the fire extinguishing fluid can be supplied from the fire extinguishing fluid supply source 13 from the beginning or after the fire extinguishing fluid is supplied from the fire extinguishing fluid storage tank 5.

FIG. 4 shows a third embodiment of the present invention. In this embodiment, the fire extinguishing fluid supply source 13 for secondary fire extinguishing is composed of a tank, and along with this, a pressurized cylinder 22, etc.
This embodiment differs from the third embodiment in that it is provided with .

FIG. 5 shows a fifth embodiment of the present invention. In this embodiment, after the extinguishing fluid from the extinguishing fluid supply source 13 passes through the manual on-off valve 21, it passes through the check valve 25 of each extinguisher without passing through the common piping 6° automatic on-off valve 10 and manual on-off valve 24. The third point is that the fluid is supplied to the fluid ejecting head 4.
This is different from the example.

In this way, when the starting means 9 or the controller 12 is inactive, the extinguishing fluid from the extinguishing fluid supply source 13 can be supplied from the beginning.

FIG. 6 shows a sixth embodiment of the present invention. This embodiment is different from the fifth embodiment in that the fire extinguishing fluid supply gi 13 is a fire extinguishing fluid storage tank, and a pressurized cylinder 22 and starting means 23 are attached.

FIG. 7 shows a seventh embodiment of the present invention. In this embodiment, a fire extinguishing fluid reserve tank 27 is installed at the top of the building, etc., and the bottom of this reserve tank 27 and the branch pipe 7 in front of the automatic shut-off valve 10 are connected by a pipe 28, and the automatic shut-off valve 10
This shows an example in which the branch piping 7 and the common piping 6 up to the manual on-off valve 24 are filled in advance with fire extinguishing fluid in the preliminary tank 27 and kept in a standby state. The other configurations are as shown in FIG. 5 shown in FIGS. 5 and 6. This is similar to the sixth embodiment. In this case, the extinguishing fluid injection head 4 is shown as an open type example.

In this way, pressure loss at the start of the supply of fire extinguishing fluid from the fire extinguishing fluid storage tank 5, which occurs when the branch pipe 7 and the common pipe 6 are empty, is prevented, and the fire extinguishing inside the fire extinguishing fluid storage tank 5 is prevented. Fluid can be fully utilized for extinguishing fires.

FIG. 8 shows an eighth embodiment of the present invention. In this embodiment, all the common piping 6 and all the This example shows an example in which the branch pipe 7 is filled with extinguishing fluid from the secondary fire extinguishing fluid supply source 13 cap, and is kept on standby in a stationary state.

By doing this, in addition to the effect of the case shown in FIG. supply of fire extinguishing fluid.

The structure in which the common piping 6 and the branch piping 7 are filled with extinguishing fluid in advance can be similarly applied to the embodiments shown in FIGS. 1 to 4.

(Effects of the Invention) As explained above, in the present invention, since a fire extinguishing fluid storage tank is provided in common for each fire extinguishing fluid jetting head, each fire extinguishing fluid jetting head is individually provided with a fire extinguishing fluid storage tank. Compared to conventional methods, equipment costs can be significantly reduced. Furthermore, in the second invention, even if the fire extinguishing fluid storage tank is common, the fire extinguishing fluid is injected only from the fire extinguishing fluid injection head that has detected a fire. It has the advantage that it can be constructed economically and that extinguishing fluid can be used effectively.

[Brief explanation of the drawing]

1 to 8 are perspective views showing the schematic configurations of first to eighth embodiments of a simple automatic fire extinguishing system according to the present invention. 1...Building, 2...Room, 3...Fire detector, 4
... Fire extinguishing fluid injection head, 5... Fire extinguishing fluid storage tank, 6... Common piping, 7... Branch piping, 10...
Automatic opening/closing valve, 12...controller. Figure 7

Claims (2)

[Claims] (1) A fire detector and a fire extinguishing fluid jetting head installed in pairs on the ceiling of each place where fire extinguishing is to be performed in a building, and a fire extinguishing fluid jetting head installed in common with each of the fire extinguishing fluid jetting heads. A common fire extinguishing fluid storage tank that supplies fire extinguishing fluid to the injection head via piping, and a controller that issues a command to start supplying the fire extinguishing fluid from the fire extinguishing fluid storage tank when any of the fire detectors detects a fire. A simple automatic fire extinguishing system equipped with the following. (2) A fire detector and a fire extinguishing fluid jetting head installed in pairs on the ceiling of each place where fire extinguishing is to be carried out in a building, and a fire extinguishing fluid jetting head installed in common with each of the above-mentioned fire extinguishing fluid jetting heads. a common extinguishing fluid storage tank that supplies extinguishing fluid to the injection heads through branch piping;
an automatic opening/closing valve provided in any part of each of the branch pipes, and the fire extinguishing fluid jet paired with the fire detector that detected a fire when any of the fire detectors detected a fire; A simple automatic fire extinguishing device comprising: a controller that gives a valve opening command to the automatic opening/closing valve that supplies fire extinguishing fluid to the head.