JP3167807B2 - Sprinkler fire extinguishing system for apartment house - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing system for a residential complex, in which a sprinkler head is installed for each dwelling unit.

[0002]

2. Description of the Related Art In recent years, apartment buildings and other condominiums have been increasing in height, and high-rise floors where fire truck ladders do not reach once, once a fire has occurred, the fire prevention compartment has been firmly secured. Although it is possible to prevent the spread of fire to the dwelling unit to some extent, it is quite difficult to extinguish the fire in the dwelling unit itself.

[0003] For this reason, it is important to extinguish the fire in the event of a fire. In particular, it has been studied to install a sprinkler head for each dwelling unit on the high floor of an apartment house such as a high-rise apartment.

[0004]

The sprinkler fire extinguishing system intended for each dwelling unit in such a condominium has not been put to practical use at present, and is unique to a condominium which is different from the sprinkler extinguishing system for department stores and the like. You have to think about the configuration. That is, a general sprinkler fire extinguishing system branches a branch pipe from a water supply main pipe for each floor, and connects a plurality of sprinkler heads to the branch pipe. But,
In a sprinkler fire extinguishing system for a condominium, since the fire extinguishing target section is in units of dwelling units, it is easier to manage if the branch pipe for each floor is further branched into dwelling units and connected to a sprinkler head in the dwelling units.

[0005] Furthermore, since the fire extinguishing target compartment is made in units of dwelling units, it is necessary to provide a device configuration that sufficiently takes into account maintenance and inspection, fire recovery, and the like. Furthermore, since it is intended for homes, water should not be discharged due to the wrong operation of the sprinkler head. The present invention has been made in view of such a point, and an object of the present invention is to provide a sprinkler fire extinguishing system for a house, which realizes an optimal device configuration when a fire extinguishing target section is a unit of dwelling unit.

[0006]

Means for Solving the Problems In order to achieve the above object, a sprinkler fire extinguishing system for an apartment house according to the present invention is configured as follows. The reference numerals in the drawings of the embodiments are also shown. First, according to the present invention, a water flow detecting device 10 is provided for each floor from a main fire extinguishing pipe 4 started from a fire extinguishing pump 1.
The sprinkler fire extinguishing system for an apartment house connected to a sprinkler head 8 installed at a required place in a house by further branching the branch pipe 9 through each of the houses, and 10 is provided in the common part 13 of each floor, and a pre-operation valve 19 is provided in a part where the pipes 18-1 and 18-2 are drawn from the branch pipe 9 to each house 24. The opening and closing control is performed by the control means 21.

The present invention also relates to the pre-actuation valve control means 2.
1 is a fire signal from a fire detector 23 provided in each house 24 or the fire signal and the sprinkler head 8 of pressurized air filled in a pipe 18-2 from the pre-actuation valve 19 to the sprinkler head 8. The pre-actuation valve 19 is opened when both of the pressure drop signal from the pressure detecting means for detecting the pressure drop due to the operation are received.

Further, the present invention relates to the pre-actuation valve control means 2.
1 is provided with opening and closing operation means 133 and 134 for manually opening and closing the pre-operation valve 19. Further, the present invention is characterized in that the pre-operation valve control means 21 is provided with a display means 136 for displaying that the pre-operation valve 19 is operating. Further, the present invention is characterized in that an auxiliary faucet 12 is connected to the branch pipe 9.

Further, according to the present invention, an opening / closing operation means 138 for transmitting an opening / closing signal to the pre-operation valve control means 21 to open / close the pre-operation valve 19 is provided on a house information panel 26 provided in each of the houses 24. 139 is provided. The present invention also provides a housing information panel 26 provided in each of the houses 24.
And a display means 141 for displaying that the pre-actuation valve 19 is operating.

[0010]

According to the sprinkler fire extinguishing system for a condominium according to the present invention having such a configuration, the running water detecting device 10 is provided in the common portion 13 on each floor, and the door-to-door house 2 on each floor is provided.
Since the pre-actuation valve 19 is provided in the fourth housing 4, sufficient fire extinguishing management can be performed for each door-to-door house 24 without affecting adjacent houses.

In addition, since the opening and closing control of the pre-operation valve 19 is performed by the pre-operation valve control means 21 based on a fire signal or a recovery signal from the fire detector 23, when the fire is extinguished, the recovery is automatically performed by the recovery signal. Water damage can be minimized. In addition, fire detector 2
Since the pre-actuation valve 19 can be opened based on both the fire signal and the pressure drop signal from the fire detector 3, the sprinkler head 8 operates even if the fire detector 23 erroneously issues a warning. Otherwise, the pre-actuation valve 19 will not be opened, and the drainage work in each house 24 will not be necessary.

Further, the pre-actuation valve 1 is provided to the pre-actuation valve control means 21.
Since the opening / closing operation means 133 and 134 for manually opening and closing the nozzle 9 are provided, even when the fire detector 23 does not issue a warning, the pre-operation valve 19 is activated when the sprinkler head 8 is operating.
Can be opened to extinguish a fire for each door-to-door house 24. The display means 13 provided in the pre-actuation valve control means 21
6 indicates that the pre-operation valve 19 is operating, so that an alarm can be issued for each house 24.

Further, since the auxiliary sprinkler tap 12 is provided in the branch pipe 9, the conventional fire hydrant equipment can be omitted, and the cost can be reduced. Further, since the housing information panel 26 is provided with opening / closing operation means 138 and 139 for manually opening and closing the pre-operation valve 19, even when the fire detector 23 does not operate, the pre-operation is performed when the sprinkler head 8 is operating. By opening the valve 19, the fire can be extinguished for each door-to-door house 24.

Further, since the display means 141 provided on the house information panel 26 indicates that the pre-actuation valve 19 is operating, a running water warning can be issued for each house 24. As a result, it is possible to realize an optimal device configuration in a case where the fire extinguishing section is a unit of a house.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 are views showing an embodiment of the present invention.
In FIG. 1, reference numeral 1 denotes a fire pump, which is driven by a motor 2 and pressurizes fire-extinguishing water from a water source water tank 3 to supply the fire-extinguishing water to a main fire-extinguishing pipe 4 which is set up in the vertical direction of the building. The operation of the motor 2 is controlled by a pump control panel 5.

Further, a pressure tank 6 is installed near the fire pump 1 and receives the pressure of pressurized water filled in the main fire extinguishing pipe 4 to compress the internal air. The pressure tank 6 is provided with a pressure switch 7. When the pre-actuation valve 19 is opened and the sprinkler head 8 is actuated to lower the pressure of the main fire extinguishing pipe 4 to a predetermined pressure or less, the pressure switch 7 outputs a detection output to the pump control panel 5. The operation of the fire pump 1 is started.

An elevated water tank (not shown) is installed on the roof of the building, and pressure is applied to the main fire extinguishing pipe 4 by a head determined by the installation position of the elevated water tank. From the main fire extinguishing pipe 4, fire extinguishing pipes 9 on each floor are branched off for each floor of the building. In this embodiment, the first floor is taken as an example. In each floor fire extinguishing pipe 9,
A running water detection device 10 is provided for each floor, and the running water detection device 10 opens the pre-actuation valve 19 and sets the sprinkler head 8.
It is activated by the operation of. The operation of the running water detection device 10 is as follows.
The self-fire alarm receiver 11 is notified, and the self-fire alarm receiver 11 displays this operation. That is, the operation of the flowing water detection device 10 is managed by the self-fire alarm receiver 11. An auxiliary spigot 12 is provided in each fire extinguishing pipe 9 on the secondary side of the flowing water detecting device 10. Therefore, the conventional fire hydrant equipment can be omitted. Flowing water detection device 10 and auxiliary watering tap 12
Is provided in a common part 13 such as a corridor or an elevator hall.

A compressor 14 pressurizes air and supplies pressurized air to a main air pipe 15. The main air pipe 15 has an air pipe 16 for each floor for each floor.
Is branched and connected to each floor air pipe 16, and a door-to-door air pipe 17 is branch connected. Door-to-door air piping 17
It is connected to the pre-actuation valve 19 provided in the door-to-door fire extinguishing pipe 18-1 branched and connected to each floor fire extinguishing pipe 9, and at the time of regular monitoring,
Door-to-door fire extinguishing pipe 18-2, door-to-door air pipe 17, air pipe 16 and main air pipe 15 on the secondary side of pre-operation valve 19 are filled with pressurized air, and door-to-door fire extinguishing pipe on primary side of pre-operation valve 19 is provided. 18-1, each floor fire extinguishing pipe 9 and main fire extinguishing pipe 4 are filled with pressurized water.

A closed type sprinkler head 8 is connected to the door-to-door fire extinguishing pipe 18-2. The pressure drop of the pressurized air in the door-to-door fire extinguishing pipe 18-2 is detected by a pressure switch 20 as pressure detecting means, and a pressure drop signal is output to a pre-actuation valve control panel (pre-actuation valve control means) 21. That is, the operation of the sprinkler head 8 is monitored by the pre-actuation valve control panel 21 via the pressure switch 20.

Reference numeral 22 denotes a motor-operated valve for opening and closing the pre-operation valve 19. The motor-operated valve 22 is controlled to open and close by a pre-operation valve control panel 21 based on a fire signal or a recovery signal from a fire detector 23. The pre-operation valve control panel 21 is connected to the self-fire alarm receiver 11 and outputs an operation signal of the pre-operation valve 19 to the self-fire alarm receiver 11. The self-fire alarm receiver 11 indicates that the pre-actuation valve 19 is operating.

In the door-to-door house 24, a fire repeater 25 and a house information panel 26 connected to the fire repeater 25 are provided.
The fire relay 25 outputs a fire signal from the fire detector 23 to the house information panel 26 and also outputs a fire signal to the self-fire alarm receiver 26. As a result, the house information panel 26 and the self-fire alarm receiver 11 display a fire. Housing Information Panel 2
6 performs fire display and processes other house information such as a door phone and outputs it to the self-fire alarm receiver 11.

Next, a pre-operation type running water detecting device which is the pre-operation valve 19 will be described with reference to FIGS. FIG.
FIG. 3 shows a pre-operation type running water detection device in a steady monitoring state, and FIG. 3 shows a pre-operation type running water detection device in an operation state. In FIG. 2, reference numeral 91 denotes a main body of the pre-operation type running water detection device 19, and a primary pipe 59 which is a part of a door-to-door fire extinguishing pipe 18-1 is inserted into the main body 91, and an end thereof is open. The inside of the main body 91 is divided into a priming chamber 93 and a secondary chamber 94 by a clapper 92 serving as a valve body, and the clapper 92 opens and closes an opening of the primary pipe 59. A spring 95, which is an elastic body, is housed in the priming chamber 93, and the spring 95 presses the clapper 92 toward the opening. The primary pipe 59 is filled with pressurized water for fire extinguishing, and the priming chamber 93 is also filled with pressurized water of the same pressure. The pressurized water of the same pressure is applied before and after the clapper 92, and the area difference between the front and rear of the clapper 92 (primary area) Side 1: Clamper 9 with the priming chamber side 2) and the spring 95
2 is kept closed.

A check valve 96 is connected to the main body 91, and the check valve 96 is provided with a clapper 97. Door-to-door fire extinguishing pipe 1 to which sprinkler head 8 is connected to check valve 96
8-2 is connected, and the check valve 96 and the door-to-door fire extinguishing pipe 18-2 are connected.
A gate valve 98 is provided at the connection portion. A door-to-door air pipe 17 for supplying compressed air is connected to the upper side of the checker 96 from the clapper 97, and the primary side of the clapper 97 and the door-to-door fire extinguishing pipe 18-2 are filled with compressed air.
Since the secondary chamber 94 of the main body 91 is at atmospheric pressure, the clapper 97 is kept closed.

The air pipe 71 is provided with a control valve 75, a flow regulating valve 76 with an orifice mechanism, and a check valve 77.
Normally, the flow control valve 76 is in a closed state, but the valve body has φ2
A hole having a small diameter is provided, and compressed air is supplied from the hole. At the time of restoration, the compressed air is quickly supplied into the pipe by opening the flow control valve 76. 99
Is a drain pipe connected to the check valve 96, and the drain pipe 9
9, a pressure gauge 100, a pressure switch 101 and a system drain valve 102 are provided.

The pressure switch 20 detects a pressure reduction of the compressed air filled in the secondary side of the branch pipe 96 and the door-to-door fire extinguishing pipe 18-2, that is, a leak of the compressed air due to the operation of the sprinkler head 8 and the damage of the pipe. , Sends a pressure drop signal to the pre-actuation valve control panel 87. 103 is a priming pipe. One end of the priming pipe 103 is connected to the priming chamber 93 and the other end is connected to the primary pipe 59. The pressurized water in the primary pipe 59 is supplied to the normally open priming valve 104, the strainer 105, and the check valve 1
06, the orifice 107 and the pressure gauge 108 are supplied to the priming chamber 93.

A starting pipe 109 is connected to the orifice 107 side of the priming pipe 103, and the starting pipe 109 is drained through a motor-operated valve (starting valve) 22 that opens and closes according to an opening / closing signal from a pre-actuation valve control panel 21. Connected to piping. Also,
The starting pipe 109 is provided with a manual release valve 111 in parallel with the electric valve 22. The opening of the orifice 107 is set so that the amount of drainage of the starting pipe 109 when the motor-operated valve 22 is opened is larger than the amount of inflow from the priming pipe 103 to the priming chamber 93.

Therefore, when the electric valve 22 is opened,
When the pressure in the priming chamber 93 decreases and the pressure of the pressurized water in the primary pipe 59 exceeds the force of the spring 95, the clapper 9
2 immediately opens (see FIG. 3). When the motor-operated valve 22 is closed, pressurized water from the priming valve 104 and the orifice 107 is gradually accumulated in the priming chamber 93, and has the same pressure as the pressurized water in the primary pipe 59. And, by the force of the spring 95, the clapper 92 slowly closes the opening of the primary pipe 59.

The check valve 106 sets only the flow of the pressurized water to the priming chamber 93 and prevents the backflow. Pressure gauge 108
Measures the pressure of the pressurized water flowing through the priming pipe 103. 1
Reference numeral 12 denotes a running water alarm pipe. One end of the running water alarm pipe 112 is connected to the secondary chamber 94 of the main body 91, and the other end is connected to a drain pipe. The auxiliary drain valve 11
3. Strainer 114, check valve 115, pressure switch 1
16 and an orifice 117 are provided.

When the clapper 92 is opened, the pressure switch 116 detects that the pressure of the pressurized water flowing into the flowing water alarm pipe 112 has reached a predetermined pressure. That is, the pressure switch 116 has a running water detection function, and outputs a running water alarm signal to the pre-actuation valve control panel 87. The orifice 117
When the clapper 92 is opened, a sufficient flow rate can be supplied so that the pressure switch 116 can be turned on instantaneously, and when the clapper 92 is closed, the amount of water discharged is sufficient to be turned off instantly. Is set.

An alarm test valve 119 is provided in a test pipe 118 connecting the flowing water alarm pipe 112 and the priming pipe 103, and by opening the alarm test valve 119,
The test of the pressure switch 116 is performed. FIG. 4 is a block diagram showing the signal processing system of FIG. In FIG. 4, the pre-actuation valve control panel 21 is connected to an emergency power supply via a power supply line 121, and power is supplied from the emergency power supply. Reference numeral 122 denotes a drive circuit for controlling forward and reverse rotations of the motor, and the motor-operated valve 22 is connected to the pre-actuation valve control panel 21 via the drive circuit 122 and is controlled to open and close.

The constant-temperature fire detector 23 connected to the pre-actuating valve control panel 21 has a relay 123 and a relay 123.
124, terminals 125 and 126 provided at both ends of switch 124, and alarm indicator 12
7. Inspection switch 128 for performing test, main body 12
9, a diode 130, resistors 131 and 132, and the like.

The pre-operation valve control panel 21 switches between interlocking and non-interlocking with the push button switches (opening / closing operation means) 133 and 134 which can manually open and close the pre-operation valve 19 and the fire detector 23. A changeover switch 135 is provided, and further, an indicator light (display means) 136 for indicating that the pre-operation valve 19 is operating, an indicator light 137 for indicating a pressure drop of the pressurized air in the door-to-door fire extinguishing pipe 18-2, and the like. Is provided.

Next, the operation in the event of a fire will be described with reference to the flowchart shown in FIG. In FIG. 5, step S
Assuming that a fire has occurred in Step 1, the fire detector 23 operates in Step S2. The fire detector 23 outputs a fire signal to the pre-actuation valve control panel 21, and the pre-actuation valve control panel 21 outputs an open signal to the motor-operated valve 22 in step S <b> 3.

When the motor-operated valve 22 is opened in step S4 in response to an open signal from the pre-actuation valve control panel 21, the pre-actuation valve 19 is opened in step S5, and in step S6 the fire extinguishing by door to which the sprinkler head 8 is connected. The inside of the pipe 18-2 is filled with water. When the fire gradually spreads and the fuse metal of the sprinkler head 8 melts, the sprinkler head 8 is activated in step S7, and pressurized water already filled in the door-to-door fire extinguishing pipe 18-2 is discharged from the sprinkler head 8 in step S8. Is done.

On the other hand, when the fire repeater 25 receives the fire signal from the fire detector 23 in step S9, the fire repeater 25 outputs this to the house information panel 26 and also outputs to the self-fire alarm receiver 11. . In step S10, the house information panel 26 displays a fire. In step S11, the self-fire alarm receiver 11 displays a fire, and the pre-operation valve 19 is operating according to an operation signal from the pre-operation valve control panel 21. Is displayed.

In step S12, the sprinkler head 8 is actuated to reduce the pressure in the pipe on the secondary side of the flowing water detecting device 10, and the flowing water detecting device 10 detects this pressure.
Open the valve. The running water detection signal from the running water detection device 10 is received by the self-fire alarm receiver 11 in step S13, and the self-fire alarm receiver 11 indicates that the water detection device 10 is operating.

With the opening of the water flow detection device 10, the pressure of the pressurized air in the main fire extinguishing pipe 4 is reduced, and therefore the pressure in the pressure tank 6 is also reduced. In step S14, the pressure switch 7 is operated. By the pressure drop signal from the switch 7,
The pump control panel 5 starts the motor 2 and proceeds to step S15
The operation of the fire pump 1 is started. Thereby, continuous water discharge is performed in step S16.

When the fire is extinguished by performing continuous water discharge, the fire detector 23 outputs a recovery signal to the pre-actuation valve control panel 21. The pre-actuation valve control panel 21 outputs a closing signal after a predetermined time. Output to the motor-operated valve 22. The closing operation of the motor-operated valve 22 closes the pre-actuated valve 19, and can stop water discharge from the activated sprinkler head 8. When the sprinkler head 8 is deactivated, the pressure in the pipe on the secondary side is restored, and the flowing water detecting device 10 is closed. Since the pressure in the main fire extinguishing pipe 4 is also eliminated, the pressure switch 7 returns. The operation of the recovery switch provided on the pump control panel 5 causes the running water pump 1 to stop.

In this embodiment, the common part 13 of each floor
In addition to the provision of the running water detection device 10 and the provision of the pre-actuation valve 19 for each door-to-door house 24 on each floor, it is possible to perform sufficient fire extinguishing management for each door-to-door house 24 without affecting adjacent houses. . Further, since the opening and closing control of the pre-operation valve 19 is performed by the pre-operation valve control panel 21 based on the fire signal or the recovery signal from the fire detector 23, the recovery can be automatically performed by the recovery signal at the time of fire extinguishing. , The damage of flood damage can be minimized.

The pre-actuating valve 19 can be opened based on both the fire signal from the fire sensor 23 and the pressure drop signal from the pressure switch 20. Even if the alarm is issued, if the sprinkler head 8 does not operate, the pre-operation valve 19 is not opened, and the drainage work in each house 24 is not required. Further, since the pre-actuation valve control panel 21 is provided with the push-button switches 133 and 134 for manually opening and closing the pre-actuation valve 19, even if the fire detector 23 does not issue an alarm, the sprinkler head 8
When is operated, the pre-operation valve 19 can be opened to extinguish a fire for each door-to-door house 24.

Further, since the auxiliary water taps 12 are provided on the fire extinguishing pipes 9 on each floor, the conventional fire hydrant equipment can be omitted, and the cost can be reduced. as a result,
It is possible to realize an optimum device configuration when the fire extinguishing target section is a unit of each house. Next, FIG. 6 is a view showing another embodiment of the present invention.

In FIG. 6, reference numeral 26 denotes a house information panel.
The house information panel 26 is connected to the pre-actuation valve control panel 21. The housing information panel 26 is provided with pushbutton switches (opening / closing operation means) 138 and 139 for outputting a signal for opening or closing the pre-operation valve 19 to the pre-operation valve control panel 21. The pre-actuation valve control panel 21 includes a push button switch 138, 1
A control unit 140 for processing an open signal from the control unit 39 is provided, and the control unit 140 outputs an open / close signal to the motor-operated valve 22.

The housing information panel 26 includes a pre-actuation valve 19
Indicator light (display means) 14 for indicating that is operating
1 is provided. Thereby, the opening and closing control of the pre-actuation valve 19 can be manually performed for each door-to-door house 24, and the fire can be extinguished without delay even when the fire detector 23 does not issue an alarm. The closure minimizes damage from flood damage.

The push button switches 138 and 139 and the indicator lamp 141 may be provided, for example, in the self-fire alarm receiver 11 in addition to the house information panel 26 to perform remote control.

[0045]

As described above, according to the present invention, a running water detecting device is provided in a common portion of each floor,
Since the pre-actuated valve is provided in the door-to-door house, sufficient fire extinguishing management can be performed for each door-to-door house without affecting adjacent houses. In addition, at the time of fire extinguishing, it can be automatically restored by the restoration signal, and the damage due to water damage can be minimized. In addition, when the sprinkler head does not operate even if the fire detector operates incorrectly, it is possible to prevent the pre-operation valve from being opened, so that drainage work in each house is not required. Further, the conventional fire hydrant equipment can be omitted, and the cost can be reduced. Further, since the pre-actuation valve can be manually opened and closed by the switch, the fire can be extinguished even when there is no alarm from the fire detector.

As a result, it is possible to realize an optimum apparatus configuration when the fire extinguishing target section is a unit of each house.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a view showing a pre-actuated valve in a closed state;

FIG. 3 is a view showing a pre-actuated valve in an open state;

FIG. 4 is a block diagram showing a signal processing system.

FIG. 5 is a flowchart illustrating an operation.

FIG. 6 is a view showing another embodiment of the present invention.

[Explanation of symbols]

 1: Fire pump 2: Motor 3: Water source tank 4: Main fire extinguishing pipes 5: Pump control panel 6: Pressure tank 7: Pressure switch 8: Sprinkler head 9: Fire extinguishing pipe on each floor (branch pipe) 10: Running water detection device 11: Own Fire alarm receiver 12: Fire hydrant 13: Common area 14: Compressor 15: Main air piping 16: Air piping on each floor 17: Door-to-door air piping 18-1, 18-2: Door-to-door fire piping 19: Pre-actuation valve 20: Pressure switch ( Pressure detecting means) 21: Pre-actuated valve control panel (Pre-actuated valve control means) 22: Electric valve 23: Fire detector 24: Door-to-door house 25: Fire repeater 26: House information panel 59: Primary piping 91: Main body 92: Clapper 93: Priming chamber 94: Secondary chamber 95: Spring 96: Secondary piping 97: Clapper 98: Gate valve 99: Drainage piping 100: Pressure gauge 102: System drain Water valve 103: priming pipe 104: priming valve 105: strainer 106: check valve 107: orifice 108: pressure gauge 109: starting pipe 110: electric valve 111: manual release valve 112: running water alarm pipe 113: auxiliary drain Valve 114: Strainer 115: Check valve 116: Pressure switch 117: Orifice 118: Test pipe 119: Alarm test valve 121: Power supply line 122: Drive circuit 123: Relay 124: Switch 125, 126: Terminal 127: Alarm indicator light 128: Inspection switch 129: Main body 130: Diode 131, 132: Resistance 133, 134: Push button switch (opening / closing operation means) 135: Changeover switch 136: Indicator light (Display means) 137: Indicator light 138, 139: Push button switch ( Opening / closing operation means) 140: control unit 141: table Indicator light (display means)

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kensuke Miyazaki 2-10-43 Kami-Osaki, Shinagawa-ku, Tokyo Inside Houtiki Co., Ltd. (72) Inventor Masaaki Kanzaki 2- 10-43, Kami-Osaki, Shinagawa-ku, Tokyo (58) Field surveyed (Int. Cl. ⁷ , DB name) A62C 2/00-39/00

Claims (7)

(57) [Claims] 1. A branch pipe is drawn out from a main fire extinguishing pipe started from a fire extinguishing pump through a running water detecting device for each floor.
In a fire-extinguishing facility for an apartment house connected to a sprinkler head installed at a necessary place in the house by further branching the branch pipe for each house, the running water detection device is provided in a common part of each floor,
A sprinkler fire extinguishing system for a shared house, characterized in that a pre-operation valve is provided at a portion where the pipe is drawn from the branch pipe to each house, and the pre-operation valve is controlled to open and close by pre-operation valve control means. 2. A sprinkler for a fire signal from a fire detector provided in each house by said pre-actuation valve control means or a pressurized air filled in a pipe from said fire signal and said pre-actuation valve to a sprinkler head. 2. The fire extinguishing system according to claim 1, wherein the pre-actuation valve is opened when both of the pressure drop signal from the pressure detecting means for detecting the pressure drop due to the operation of the head are received. 3. The sprinkler fire extinguishing equipment according to claim 1, wherein said pre-operation valve control means is provided with an opening / closing operation means for manually opening / closing said pre-operation valve. 4. The sprinkler fire extinguishing system according to claim 1, wherein said pre-actuation valve control means is provided with display means for indicating that said pre-actuation valve is operating. 5. The sprinkler fire extinguishing system according to claim 1, wherein an auxiliary water tap is connected to the branch pipe. 6. A housing information panel provided in each of said houses is provided with opening and closing operation means for transmitting an opening and closing signal to said pre-operation valve control means for opening and closing said pre-operation valve. 1. Fire extinguisher for apartment house. 7. The sprinkler fire extinguishing system according to claim 6, further comprising a display means for displaying on said housing information panel that said pre-actuation valve is operating.