JP3280478B2 - Sprinkler fire extinguishing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler fire extinguishing system used in combination with fire detecting means, and more particularly to a sprinkler extinguishing system equipped with a dedicated sprinkler repeater and a sprinkler monitoring panel.

[0002]

2. Description of the Related Art A sprinkler fire extinguishing system used in combination with a fire detector is disclosed, for example, in Japanese Patent Application Laid-Open No. 4-276.
No. 271 has been known. The conventional sprinkler fire extinguishing system disclosed in this publication is opened by a fire signal from a fire detector,
It is provided with a district valve device for supplying fire-extinguishing water from a primary pipe to a sprinkler head via a secondary pipe.

[0003]

However, since the conventional sprinkler fire extinguishing system does not have a dedicated sprinkler repeater or a sprinkler monitoring panel, the state of the regional valve device and its state change can be remotely detected at the disaster prevention center. There was a problem that it was not possible. Therefore, an object of the present invention is to provide a sprinkler fire extinguishing system that can extinguish a fire by a fire signal from a fire detector. Another object of the present invention is to provide a sprinkler fire extinguishing system that can extinguish a fire by opening a sprinkler head even if a fire receiver cannot transfer a fire signal.
A further object of the present invention is to provide a sprinkler fire extinguishing system that can extinguish a fire at the discretion of a monitor even if a fire signal from a fire detector is not obtained. It is still another object of the present invention to provide a sprinkler fire extinguishing system that can extinguish a fire by opening a sprinkler head even if a sprinkler monitoring panel cannot transmit or receive a signal.

[0004]

Means for Solving the Problems Claims 1 to 4
The water supply main pipe extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main pipe and extending from each of the plurality of floors to each of the plurality of floors, and provided on each branch pipe. A number of sprinkler heads, a district valve device that is provided between the water supply main pipe and each branch pipe, and supplies fire extinguishing water to the number of sprinkler heads, and is electrically connected to each of the district valve devices. A sprinkler repeater that detects a state of the district valve device and controls the corresponding district valve device;
A sprinkler monitoring panel connected to each sprinkler repeater via a common signal line, a large number of fire detectors provided on each floor, and a fire receiver electrically connected to these fire detectors and the sprinkler monitoring panel Machine. The invention according to claim 5 is a method for connecting a plurality of floors of a building such as a building.
A water main extending through the water main and
The branch pipes that branch out and extend on each of the floors
A large number of sprinkler heads provided and said water main
Between the sprinklers and the branch pipes.
And regional valve devices that supply fire-fighting water to the
Electrically connected to detect the status of the corresponding district valve device
And a sprinkle for controlling said corresponding regional valve device
And a signal line common to each sprinkler repeater.
And a sprinkler monitoring panel connected
Wrinkler monitoring panel converts commercial power supply voltage to DC constant voltage
Power supply circuit and the power supply circuit and each sprinkler repeater.
A power supply line connected between the power supply line and the
Backup power supply circuit for converting pressure
Wiring between the power supply circuit for tapping and each of the above sprinkler repeaters
And a backup power supply line.

[0005]

According to the first aspect of the present invention, the fire detector comprises:
Upon detecting the occurrence of a fire, a fire signal is sent to the fire receiver, and the fire receiver sends a signal based on the fire signal to the sprinkler monitor panel, and the sprinkler monitor panel outputs a signal based on the fire signal. A start signal is sent to the sprinkler repeater on the fire floor, and the sprinkler repeater controls opening of the start valve in the corresponding district valve device based on the start signal.

According to the invention of claim 2, the sprinkler monitoring panel detects that a fire signal cannot be received from the fire receiver, and the heat of the fire opens the sprinkler head to open the corresponding area. The sprinkler repeater sends a secondary pressure drop signal to the sprinkler monitor panel based on a decrease in the secondary pressure of the valve device, and the sprinkler monitor panel sends the secondary pressure drop signal based on the secondary pressure drop signal. A start signal is sent to the sprinkler repeater, and the sprinkler repeater controls the opening of the start valve in the corresponding regional valve device based on the start signal.

According to the third aspect of the present invention, the sprinkler repeater operates based on the fact that the sprinkler head is opened by the heat of the fire and the secondary pressure of the corresponding district valve device is reduced. Sends a drop signal to the sprinkler monitoring panel, the sprinkler monitoring panel sends a start signal to the sprinkler repeater when there is a fire determination input based on the secondary pressure drop signal, and the sprinkler repeater The start valve in the corresponding regional valve device is controlled to be opened based on the start signal.

According to the fourth aspect of the present invention, the sprinkler repeater detects that the sprinkler monitor board cannot transmit or receive a signal, and the heat of the fire opens the sprinkler head to open the sprinkler head. Based on the decrease in the secondary pressure of the regional valve device, the sprinkler repeater controls the opening of the starting valve in the corresponding regional valve device. According to the invention of claim 5, fire extinguishing equipment and
Function down and ensure the minimum water discharge function
Because

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the accompanying drawings. Embodiment 1 FIG. FIG. 1 is a schematic configuration diagram showing a first embodiment of a sprinkler fire extinguishing system according to the present invention together with an automatic fire alarm system. In FIG. 1, B1F, 1F, 2F, 3F,
4F,... Represent a plurality of floors of a building such as a building, for example, a ground floor, a first floor, a second floor, a third floor, a fourth floor,. First, an automatic fire alarm system will be described. Reference numeral 1 denotes a fire detector, which is provided in large numbers for each floor of a building. Reference numeral 2 denotes a fire relay provided on each floor, which is connected via a signal line 3 to a large number of fire detectors 1 provided on each floor. 4 is, for example, a disaster prevention center on the first floor 1F (not shown)
It is a fire receiver for receiving a fire signal from the fire detector 1 and is connected to a fire relay 2 on each floor via a common signal line 5. In addition, equipment necessary for automatic fire alarm equipment such as sound from other areas is provided, but the description thereof is omitted here.

Next, the sprinkler fire extinguishing equipment (hereinafter, referred to as NS system) of the present invention will be described.
This NS system is equipped with the above-described automatic fire alarm system and a fast-acting sprinkler head (hereinafter, referred to as NS head) having a high thermal response speed in order to extinguish a fire early to minimize fire damage and water loss due to fire extinguishing. This is a new sprinkler system used to extinguish a small amount of water in the early stage of a fire. In FIG. 1, reference numeral 6 denotes a water supply main pipe extending through a plurality of floors, and reference numeral 7 denotes a branch pipe branching from the water supply main pipe 6 and branching off for each floor. Numeral 8 denotes a large number of NS heads provided in each branch pipe 7, whose heat response speed is remarkably faster than that of a conventional sprinkler head (not shown) so that an initial fire can be detected and extinguished. Things. The idea of increasing the heat response speed is to improve the heat receiving efficiency and reduce the heat loss, in other words, to surely catch the heat of the fire without escaping it to another. Specifically, the NS head 8 has a standard water discharge pressure of 1 kg /
cm ² , flow rate 50 l / min, one for floor space 2.1 m ² for office use, and floor space 13 m ² for small area restaurants
It only needs to be installed one per unit, has a smaller water discharge amount and a wider watering area, and can exhibit a sufficient fire extinguishing ability even if the watering density is reduced. Further, a water source (not shown) and a pump unit 9 are provided near the lower end of the water supply main pipe 6.

Reference numeral 20 denotes a district valve device (hereinafter, referred to as an NS valve unit) provided between the water supply main pipe 6 and each branch pipe 7 to supply fire extinguishing water to a large number of NS heads 8. 4 will be described later in detail. Reference numeral 50 denotes a sprinkler repeater (hereinafter, referred to as an NS repeater) provided for each NS valve unit 20, and a corresponding NS
It is connected to the valve unit 20 via the signal line 11, and will be described later in detail with reference to FIG. Reference numeral 80 denotes a sprinkler monitoring panel (hereinafter, referred to as a “sprinkler monitoring panel”) arranged in the above-mentioned disaster prevention center.
It is called NS monitoring board. ), And all NS repeaters 50
Connected through a common signal line 12 and the fire receiver 4
Is connected via the signal line 13, and will be described later in detail with reference to FIG.

The NS system of the present invention is configured as described above, and a fire occurs on the second floor 2F, for example, and at least one of the fire detectors 1 provided on the second floor 2F operates. If a fire signal occurs,
This fire signal is transmitted from the fire relay 2 provided on the second floor 2F.
The signal is transmitted from the fire relay 2 to the fire receiver 4 via the common signal line 5.
Then, the fire receiver 4 processes the received fire signal for each floor, and then sends the signal line 13 to the NS monitoring panel 80.
To be reported via

The NS monitoring panel 80 is connected to the NS repeater 50 provided on the second floor 2F via the common signal line 12 in this case.
Addressing and transmitting the coded control signal to
Further, the NS repeater 50 transmits the control signal to the corresponding NS valve unit 20 via the signal line 11, thereby putting the NS valve unit 20 in a standby state. Note that N
The standby state of the S valve unit 20 means that the NS valve unit 20 is placed in a state where the NS head 8 can be immediately sprinkled by opening the NS head 8. afterwards,
When the NS head 8 is opened by the heat of the fire, pressurized fire extinguishing water automatically adjusted to the set pressure from the NS head 8 starts to be discharged. Simultaneously with the start of the water discharge, the NS valve unit 20 transmits the coded flowing water signal together with its own address to the NS monitor panel 80 via the NS repeater 50, and the water discharge alarm is displayed on the NS monitor panel 80. You.
Also, when the NS head 8 starts discharging water, the fire extinguishing water passes from the water source through the pump unit 9, the water supply main pipe 6, the NS valve unit 20, and the branch pipe 7 from the NS head 8 by automatically starting the pump unit 9. Continue to be discharged.

FIG. 2 is a diagram showing an example in which all the NS repeaters 50 are divided into a plurality of groups. In this example, the NS repeaters 50-B1 are connected to the NS monitor panel 80 via the common signal line 12.
F to 50-5F are connected, the group G1 includes only the NS repeaters 50-B1F, the group G2 includes the NS repeaters 50-1F and 50-2F, and the group G3 includes the N repeaters 50-1F and 50-2F.
Group S4 consists only of NS repeaters 50-5F, and consists of S repeaters 50-3F and 50-4F. As described above, the number of groups and the number of NS repeaters in each group can be arbitrarily determined.

The NS monitoring panel 80 includes an NS repeater 50-B1.
System polling, point polling, and selecting described below are performed on F to 50-5F to collect predetermined information from a predetermined NS repeater or control a predetermined NS repeater.

Here, the system polling does not poll each of the NS repeaters 50-B1F to 50-5F, but divides these NS repeaters into four groups and performs polling for each group. Then, a response timing is given to each group, and the group having the NS repeater that has detected a change in the state of the corresponding regional valve device responds to the NS monitoring panel 80 at the response timing. Point polling refers to polling only for a group that has responded to the NS monitoring panel 80 in system polling for each NS repeater in the group, giving a response timing to each NS repeater, and detecting an NS state change. This is a polling in which the repeater responds to the NS monitoring panel 80 at the time of the response. The term “selecting” refers to collecting predetermined information from an NS repeater responding to the NS monitoring panel 80 in point polling, or transmitting a predetermined control signal to the NS relay responding to the NS monitoring panel 80 in point polling. Things.

FIG. 3 is a diagram for explaining an operation example of FIG.
The operation proceeds from the upper left to the upper right in FIG. 3, the operation proceeds from the right end to the left end of the next lower stage, and the processing sequentially proceeds in this manner. In FIG. 3, the upper part of the horizontal line indicates the operation of the NS monitoring panel 80, and the lower part of the horizontal line indicates the operation of the NS repeater. In FIG. 3, a broken-line frame indicates that no response was made at the response timing, and a thick-line frame indicates that a response was made at the response timing. That is, the thick line frame indicates an NS repeater that has detected a state change as compared to immediately before the response timing (or a group having an NS repeater that has detected a state change).

First, at P1 in FIG. 3, system polling is performed. That is, the NS monitoring panel 80 sends the address SPAD indicating system polling and the status information return instruction CM1 for returning status information to the groups G1 to G4, and then sequentially returns the timing for returning status information to the groups G1 to G4. ,give. Each of the groups G1 to G4 responds by returning a pulse signal or the like to the NS monitoring panel 80 at its own response timing only when the NS repeater in its own group detects a state change. In the example shown in FIG. 3, only the group G2 responds to the NS monitoring panel 80 because the NS repeater 50-2F has detected a state change. As a result, the NS monitoring panel 80
NS repeater 50-1F or 50- belonging to group G2
It can be grasped that 2F has detected a state change and has state information to be sent to the NS monitoring panel 80.

Next, at P2, point polling is performed. That is, the NS monitoring panel 80 sends the address GAD of the group to be polled and the status information return command CM1 to the NS repeaters belonging to that group. In the case of the above example, the address GAD (2) and the status information return instruction C
And M1 to the NS repeaters 50-1F and 50-2F. Then, the timing for returning the state information is sequentially given to these NS repeaters. Each NS repeater responds by returning a pulse signal or the like to the NS monitor panel 80 at its own response timing only when it detects a state change. At the time of the above point polling, the NS repeater 50-2F detects a state change,
Only the S repeater 50-2F responds to the NS monitoring panel 80.
As a result, the NS monitoring panel 80 sets the NS repeater 50-2F
Can detect that the NS repeater 50-2F has state information to be sent to the NS monitoring panel 80.

Next, at P3, selecting is performed. That is, the NS monitoring panel 80 determines that the NS
It sends out the address SAD of the repeater and the status information return command CM1. In the case of the above example, since the response signal is received from the NS repeater 50-2F, the NS monitoring panel 80 sends the address SAD (2F) of the NS repeater 50-2F and the status information return command CM1. On the other hand, NS repeater 5
0-2F transmits the self address SAD (2F) and the data DA (for example, a secondary pressure drop signal) to be sent to the NS monitoring panel 80.
Send to

When receiving the data DA, the NS monitoring panel 80 receives the address SAD (2F) and the received data DA.
The NS repeater 50-2F receives the data DA, collates the data DA transmitted immediately before by itself with the data DA received at that time, and if the two data match, the data DA is compared with the data DA. It is sent to the NS monitoring panel 80 again.
If the data DA received the first time and the data DA received the second time match, the NS monitoring panel 80 determines that the data DA transmitted by the NS
A is recognized. Then, the NS monitoring panel 80 performs necessary processing, for example, display or a simple alarm, based on the received data DA. Thereafter, the state returns to the normal state, and the above system polling is repeated.

In the above example, the point polling and the selecting are performed twice each, in order to prevent erroneous transmission due to induced noise or the like.

Next, an operation of checking for a disconnection of the common signal line 12 will be described. In P01 of FIG. 3, system polling is performed once, and then the NS repeater 50-B1F
Up to check the disconnection of the signal line 12 up to this point. That is, the NS monitoring panel 80 is connected to the NS repeater 50-B1.
F address SAD (B1F) and specific information return instruction CM
2 and the NS repeater 50-B1F returns the self address SAD (B1F) and the specific information (in this case, the type information CL indicating the type of the NS repeater) to the NS monitoring panel 80. Upon receiving the type information CL from the NS repeater 50-B1F, the NS monitoring panel 80 determines that there is no disconnection in the signal line 12 from the NS monitoring panel 80 to the NS repeater 50-B1F. Then, after performing system polling once to confirm that there is no NS repeater that has detected a state change, the same disconnection test as described above is performed on the NS repeater 50-1F. In this way, for each of the NS repeaters 50, the disconnection inspection of the signal line 12 from the NS monitoring panel 80 to the NS repeater 50 is performed, and during that time, the system polling is executed once. In this system polling, if any group responds, of course, point polling is performed for that group,
Make the necessary selections.

The type information CL is not described in detail except for the NS repeater, but includes information indicating a pump unit repeater, an auxiliary sprinkler repeater, and the like. As described above, if the NS monitoring panel 80 collects the type information as the specific information, the NS monitoring panel 80 changes the type of the NS repeater 50 simultaneously with the presence or absence of the connection of the NS relay 50. Can be known from the NS monitoring panel 80. In the example above,
Each time the system polling is performed once, the disconnection determination selecting is executed, so the NS repeater 50-B
To monitor all of 1F to 50-5F, it is necessary to perform system polling 16 times. Note that the disconnection determination may be performed every time the system polling is performed a predetermined number of times.
The disconnection determination may be performed at predetermined time intervals.
The disconnection determination selecting of a plurality of NS repeaters 50 may be performed at a time. Also, for the same NS repeater 50,
If the disconnection determination selecting is performed twice consecutively, it is possible to prevent erroneous determination due to induced noise. The specific information may be information other than the type information, for example, a specific code.

FIG. 4 shows the N used in the first embodiment of the present invention.
FIG. 2 is a schematic configuration diagram illustrating an S valve unit 20. This N
The S-valve unit 20 is an automatic valve having both functions of a pre-operation type automatic alarm valve and an automatic valve with a secondary pressure adjusting function, and is installed for each floor of a building as described above. In FIG. 4, reference numeral 21 denotes an NS valve whose primary side 22 is connected to the above-described water supply main pipe 6 via a primary side pipe 23.
The secondary side 24 is connected to the NS head 8 via the secondary side pipe 25 and the branch pipe 7 described above. Although normally closed, fire detector 1 (Fig. 1)
The NS valve 21, which can be opened by a fire signal from the NS monitor panel 80 and a control signal from the NS monitoring panel 80, includes a motor-operated remote test valve 26 for testing water flow to the secondary pipe 25 and a manual valve. A test valve 27, a pressure regulating pilot valve 28 for reducing the pressure of the fire-extinguishing water in the primary pipe 23 to a predetermined pressure by adjusting the opening of the NS valve 21, and supplying the pressure to the secondary pipe 25; An electric start valve 29 that normally shuts off the pressurized release and performs a shift operation to the above-described openable state, and a manual start valve 31 connected in parallel with the electric start valve 29;
A discharge pressure valve 32 for discharging abnormally high pressure in the secondary pipe 25 is provided.

The NS valve 21 has a primary side 22 and a secondary side 2
4 is closed by a valve body 35 biased by a spring 34, and a piston 38 integral with the valve body 35 and a valve box 37 form a cylinder 38. The cylinder 38 is activated. It is connected to the pressure regulating pilot valve 28 via a valve 29 or a manually activated valve 31. The starting valve 29
Is opened and closed by a motor, an electromagnetic solenoid or the like connected to the terminal block 39 by an electric circuit shown by a broken line.

The pressure regulating pilot valve 28 is connected to the secondary pipe 25.
Is introduced into the operation room 28a by a pipe 25a, and the primary pressure is taken in from a primary side 22 of the NS valve 21 through a strainer (garbage remover) 41 and a pipe 22a, and a pressure adjusting action of the flam 28b and the spring 28c. Valve body 2
8d is adjusted, and the NS valve 2 is connected through the pipe 22b.
The primary pressure is introduced into one cylinder 38.

This pressure regulating pilot valve 28 is set to N
It has a function to open the S valve 21. That is, when the secondary pressure in the secondary pipe 25 introduced into the operation chamber 28a by the pipe 25a is lower than a predetermined pressure, the valve body 28d is opened by the pressure regulating action of the flam 28b and the spring 28c, and the pipe is opened. The primary pressure is gradually introduced into the cylinder 38 via the open start valve 29 or the manual start valve 31 and the piston 36 is pushed up (to the left in the drawing), and the associated valve body 35 is opened. Is released, and the fire extinguishing water flows from the primary side 22 to the secondary side 24. Conversely, when the secondary pressure is higher than the predetermined pressure, the flam 28b
And the spring 28c regulates the valve body 28d by the pressure regulating action,
The inflow of the primary pressure is reduced, the pressure in the cylinder 38 is reduced, and the piston 36 is lowered (to the right in the drawing), and the interlocking valve element 35 is closed, so that the primary side 22 to the secondary side 24 is closed. The flow of fire-extinguishing water decreases, and this operation is repeated to
5 maintains a predetermined opening degree.

Thus, the opening of the NS valve 21 is adjusted, and the secondary pressure is adjusted to a predetermined pressure suitable for the fire extinguishing operation, for example, to 3.5 kg / cm ² near the secondary side 24. The operation chamber 28a of the pressure control pilot valve 28 is connected to the secondary pipe 25 via a pipe 25a via a small hole 28e of a piston portion of a valve body 28d opened for pressure control. As a result, the pressure in the secondary pipe 25 is increased at the time of the opening operation of the pressure control pilot valve 28, so that the pressure is constantly maintained at a predetermined pressure by the pressure control action of the pressure control pilot valve 28.
A small amount of primary pressure is supplied at the time of pressure drop due to temperature change. At this time, the NS valve 21 does not open, so the open signal
(Running signal) does not occur. At the same time, the pressure flows into the back surface via the piston 36, and the sliding of the valve body 35 becomes slow, so that there is an effect that the pressure adjusting operation is easily performed.

Therefore, when the NS head 8 (FIG. 1) is opened due to a fire, it is possible to immediately discharge water at a predetermined pressure suitable for fire extinguishing activities.
The NS valve 2 is controlled by the pressure control operation of the pressure control pilot valve 28.
1 is opened, and the opening degree of the valve body 35 is adjusted, so that fire-extinguishing water having a predetermined pressure suitable for fire-extinguishing activities is supplied to the secondary pipe 25.

The remote test valve 26 and the manual test valve 27 are NS
The secondary side 24 of the valve 21 and the drain pipe 42 are connected in parallel with each other. The remote test valve 26 is opened and closed by an electric unit 26a such as a motor or an electromagnetic solenoid connected to the terminal block 39 by an electric circuit shown by a broken line, and fire water of the same amount as one NS head 8 is drained by the opening operation. The size of the opening portion is set so as to be adjusted. The size of the opening of the manual test valve 31 is set such that the same amount of fire water as at least one of the NS heads 8 is drained by the opening operation, and the secondary side 24 of the NS valve 21 is
It is confirmed whether or not the water pressure in the secondary pipe 25 at the time of the drainage test is maintained at a predetermined pressure by the pointer of the pressure gauge 43 provided in the apparatus.

When the fire-extinguishing water introduced from the secondary side 24 into the interior thereof exceeds an allowable pressure (a value slightly higher than a predetermined pressure), the exhaust-pressure valve 32 drains the fire-extinguishing water to the drain pipe 42 and discharges the secondary-side piping. The pressure in 25 is maintained at a predetermined pressure. As described above, the secondary pressure is measured by the pressure gauge 43, while the primary pressure of the fire extinguishing water in the primary pipe 23 is measured by the pressure gauge 44 connected to the strainer 41.

A pressure switch 45 for detecting the opening of the NS valve 21 is provided on a valve seat 33 of the NS valve 21 and is connected to a pipe from a flowing water detecting chamber 46 which is closed by the valve body 35 when the valve body 35 is closed. A running water signal is supplied to the terminal block 39 via an electric circuit shown by a broken line. The pipe 22c is connected to the drain pipe 42 via the orifice 47, and when the NS valve 21 is closed, the fire extinguishing water that has operated the pressure switch 45 is gradually drained. The pressure switch 48 for detecting a large pressure reduction due to breakage of the secondary side piping system, etc.
, And supplies a secondary pressure drop signal to the terminal block 39 through an electric line shown by a broken line. Therefore, this pressure switch 4
8, when the NS head 8 is opened for any reason other than a fire, for example, detects a pressure drop in the secondary side pipe 25 and supplies a secondary pressure drop signal to the terminal block 39. 8 can be warned.

Next, the operation of the NS valve unit 20 will be described in detail. As described above, a control signal given from the NS monitoring panel 80 and eventually from the NS repeater 50 via the terminal block 39 of the corresponding NS valve unit 20 operates the electric unit 29a to open the starting valve 29 as described above. The standby state of the NS valve 21 can be confirmed by operating a limit switch (not shown) provided at the start valve 29 and closed at the fully open position, and the primary side 22 of the NS valve 21 can be confirmed from the water supply main pipe 6 through the primary pipe 23 of the NS valve 21. The fire extinguishing water introduced into the tank is regulated by the pressure regulating pilot valve 28 in accordance with the pressure reduction on the secondary side 24 due to the opening of the NS head 8 (FIG. 1).
The fire extinguishing water on the primary side 22 is discharged from the secondary side 24 and thus the secondary side, because the piston 36 slowly releases the valve body 35 from the valve seat 33 through the opened starting valve 29 and gradually enters the cylinder 38. It is gradually introduced into the pipe 25. The pressure switch 45 is operated by the rise of the water pressure in the pipe 22c to notify the terminal block 39 that the NS valve 21 has been opened. Thereafter, the introduction of the fire extinguishing water to the secondary pipe 25 is controlled by the above-described pressure adjusting operation of the pressure adjusting pilot valve 28, and the fire extinguishing water is reduced to a predetermined pressure.

Thereafter, as the water discharge from the NS head 8 (FIG. 1) continues, this large water discharge amount is detected by a pressure air tank (not shown) or the like, and the pump unit 9 (FIG. 1) is activated to supply water. NS valve 2 from main pipe 6 (Fig. 1)
The high pressure fire extinguishing water is supplied to one primary side pipe 23. As described above, since the fire-extinguishing water of a predetermined pressure is filled in the secondary pipe 25 to the NS head 8 and the like, the fire-extinguishing water is discharged simultaneously with the opening of the NS head 8, and there is no delay in the fire-extinguishing operation.

FIG. 5 shows the N used in the first embodiment of the present invention.
It is a wiring diagram which shows S repeater 50 in a partial block diagram. The NS repeater 50 is a transmission terminal of the NS monitor panel 80, and is electrically connected to the NS valve unit 20, which is an input / output device of the NS system, and is also electrically connected to the NS monitor panel 80. . The NS repeater 50 further includes:
When the state of the NS valve unit 20 is detected and the detected state is transmitted as an encoded information signal to the NS monitor panel 80 together with its own address, and when a coded control signal is transmitted to and received from the NS monitor panel 80, the address Then, the control signal is analyzed to control (start and return) the NS valve unit 20 after determining whether the command is a command to the self.

The NS repeater 50 has a control circuit 51, which is a control center microprocessor M
PU1, a memory ROM1 storing a program,
Memory RAM1 for storing signals and data, interfaces IF11 and IF12 with each unit in NS repeater 50
And IF13.

The transmission circuit 52 in the NS repeater 50
It is connected to the F13 and transmits and receives between the signal lines S + and S- to be described later to and from the NS monitor panel 80 by serial transmission, and includes an A / D converter, a D / A converter, and the like (not shown). The address setting section 53 is a section for individually setting an address for distinguishing each NS repeater 50 when transmitting and receiving with the NS monitoring panel 80. The address is set by, for example, a dip switch (not shown). The power supply circuit 54 converts a power supply voltage of, for example, DC 24 V from power supply lines PVC, PV described later to a predetermined voltage, for example, 20 V, and supplies the converted voltage to a relay and a response circuit described later. The constant voltage circuit 55 converts the voltage taken out between the signal lines S + and S− into a constant voltage of 3 V, and supplies it to the control circuit 51 as its power supply voltage. The voltage monitoring circuit 56 monitors the voltage of 20 V supplied from the power supply circuit 54, and
When detecting a voltage drop due to V connection failure or the like, it notifies the MPU 1 via the IF 12.

The relay O is connected to the NS valve unit 2 shown in FIG.
The opening of the start valve 29 is controlled by switching the contacts o1 and o2 when the excitation is performed, so that the voltage from the power supply line PVC is changed to a contact o1-a contact k1 described later.
-Terminals A and A-Contacts 29d described later-Electric unit 29a-
Diode 29c-terminal b and low contact k2-contact o2
The activation valve 29 is opened because it is applied via the earth PV; The contact 29d is a limit switch, which is mechanically switched when the electric unit 29a operates to the full open position, thereby preventing unnecessary voltage application. However, when the relay O is demagnetized, the state returns to the state shown in FIGS. 5 and 6, and the power supply voltage is applied in the reverse direction. Therefore, the start-up valve 29 is closed. State, preventing application of a reverse voltage. These contacts 29d and 29e are switched when they are fully opened or fully closed, but are switched by a slight movement in the opposite direction. Similarly, the relay T controls the opening of the remote test valve 26 in the NS valve unit 20, and the similar contacts 26d and 26e are switched according to the state.

The response circuit 57 is a circuit for detecting the ON / OFF of the contact by the operation of each part of the NS valve unit 20, such as the fully open and fully closed of the start valve 29 and the fully open and fully closed of the remote test valve 26, by a photocoupler or the like. It is. For example, when the start valve 29 is fully opened, the PVC-o1-k1-A and the A-contact 29
d (fully open)-terminal C and c-response circuit 57-ground PV
Accordingly, the response circuit 57 detects that the starting valve 29 is fully opened. The relay K has a self-holding function, and when the NS system is in the backup operation mode by the operation of the secondary pressure lowering pressure switch 48, when the NS system is excited by the voltage of the backup power supply line PKC described later, Contact k1
And k2, whereby the starting valve 29 is opened with PKC-k1-a and a-29d-29a-29c-b and b-k2-earth PK.

FIG. 7 shows the N used in the first embodiment of the present invention.
It is a block diagram which shows S monitoring board 80. The NS monitoring panel 80 controls the activation of the NS valve unit 20 via the NS repeater 50 in response to a fire signal from the automatic fire alarm system, displays an alarm when the NS head 8 is opened, and switches to the automatic fire alarm system. Of the water discharge signal. For the auxiliary spigot (not shown), an alarm is displayed by ANDing the fire hydrant valve opening signal and the signal of the main alarm valve (not shown) in the pump unit 9 (FIG. 1). NS monitoring panel 80
Has a status monitoring function, constantly monitors each part of the system, and displays and alerts on the panel when the NS valve 21 is dislocated due to opening and closing such as during maintenance and inspection. The remote automatic test function of the NS monitoring panel 80 performs a remote operation test for all NS valves 21 in sequence based on a programmed sequence, checks the operation function, and displays the cause of any abnormality. After printing out, a test abnormal alarm is issued. Further, automatic disconnection monitoring of the electric circuit of the NS monitoring system can be performed, and in addition, an operation test and a backup power supply test can be easily performed. The NS monitoring panel 80 has an NS independent operation mode in addition to a normal self-fire alarm interlocking mode so that the NS system functions even at the time of failure of the automatic fire alarm system or at the time of test and inspection. At the time of independent operation, water discharge can be started by a decrease in the NS valve secondary pressure. In the event of a failure of the NS system, a backup operation mode is provided to prevent the function of the fire extinguishing system from being reduced, and the backup operation mode ensures a minimum water discharge function.

The NS monitoring panel 80 includes a control circuit 81, which is a control center microprocessor M
PU2, a memory ROM2 storing a program,
It has a memory RAM 2 for storing signals and data, and interfaces IF21, IF22, and IF23 with each part of the NS monitoring panel 80.

The transmission circuit 82 in the NS monitoring panel 80
F22, which transmits and receives between the NS repeaters 50 by serial transmission between the signal lines S + and S-,
It is controlled by a one-chip microcomputer (not shown). The alarm 83 is, for example, a buzzer connected to the IF 23. The power supply circuit 84 is a circuit that converts a commercial power supply voltage of AC 100 V to a constant voltage of, for example, DC 24 V and supplies the voltage to a necessary portion. The power supply circuit 84 supplies power to each NS repeater 50 and an input IF unit and an output IF unit to be described later.
A power supply during operation is supplied by the PV, and a standby power supply 84a is provided when the commercial power supply goes down. The display control circuit 86 is connected to the IF 21 and has a liquid crystal display LC
Display of D, lighting of various light emitting diodes LED, and input monitoring of the switch SW are performed. The power supply circuit 87 for backup uses the backup input from the switch SW to
This is a circuit that converts a commercial power supply voltage of C100V to a constant voltage of, for example, DC24V, and supplies a backup power supply to each NS repeater 50 via power supply lines PKC and PK, and has a backup backup power supply 87a. The input IF unit 90 and the output IF unit 100
This unit transmits and receives a parallel signal (on / off signal) between the S monitoring panel 80 and the fire receiver 4. Each unit has a microcomputer (not shown), and transmits and receives information to and from the transmission circuit 82 by serial transmission. Accordingly, each unit has an address equivalent to that of the NS repeater 50, and transmits and receives signals in the same manner as the transmission circuit 82 transmits and receives signals to and from each NS repeater 50.

FIG. 8 shows the input IF in the NS monitoring panel 80 of FIG.
FIG. 3 is a detailed block diagram of a unit 90. This input IF
The unit 90 is a unit for the NS monitoring panel 80 to send and receive signals to and from the fire receiver 4.
The input / output of the parallel signal is performed so as not to specify the type.

The input IF unit 90 includes a control circuit 91. The control circuit 91 includes a microprocessor MPU3 which is a control center, and a memory RO in which a program is stored.
M3, a memory RAM3 for storing signals and data, an interface IF3 with each unit in the input IF unit 90
1, IF32 and IF33.

The transmission circuit 92 in the input IF unit 90
Is connected to the IF 32, and transmits and receives between the signal lines S + and S- to and from the transmission circuit 82 of the NS monitor panel 80 by serial transmission, and includes an A / D converter, a D / A converter, and the like (not shown). Have been. The address setting unit 93
When transmitting and receiving to and from the transmission circuit 82 of the monitoring panel 80, each input I
This is a part for individually setting an address for distinguishing the F unit 90. For example, the address is set by a dip switch (not shown). The power supply circuit 94 converts a power supply voltage of, for example, DC 24 V from the power supply lines PVC, PV to a predetermined voltage, for example, 20 V, and supplies it to a response circuit described later. The constant voltage circuit 55 converts the voltage taken out from between the signal lines S + and S− into a constant voltage of 3 V,
1 as its power supply voltage. The response circuit 97 is a circuit that detects on / off between each of the signal lines L1 to L16 from the fire receiver 4 and the common line C with a phototransistor (not shown) or the like. For example, four response circuits 97 are provided in one input IF unit 90, and each response circuit 9
For example, four signal lines are connected to 7, and ON / OFF of each of the four signal lines is detected, and ON / OFF of 16 signal lines can be input by one unit.

FIG. 9 shows the output IF in the NS monitoring panel 80 of FIG.
FIG. 2 is a detailed block diagram of the unit 100. This output I
The F unit 100 is also a unit for the NS monitoring panel 80 to send and receive signals to and from the fire receiver 4, and includes a control circuit 101. The control circuit 101 includes the same MPU 4, ROM 4, RAM 4, IF4 as shown in FIG.
1, IF42 and IF43.

The transmission circuit 1 in the output IF unit 100
02 is connected to the IF 42 and transmits and receives between the signal lines S + and S- to and from the transmission circuit 82 of the NS monitor panel 80 by serial transmission. The A / D converter and the D / D
It is composed of an A converter and the like. Address setting unit 103
Is a part for individually setting an address for distinguishing each output IF unit 100 when transmitting and receiving with the transmission circuit 82 of the NS monitoring panel 80. The address is set by, for example, a dip switch (not shown). Power supply circuit 1
The reference numeral 04 converts a power supply voltage of, for example, DC 24 V from the power supply lines PVC, PV to a predetermined voltage, for example, 20 V, and supplies it to an output circuit described later. The constant voltage circuit 105 converts the voltage taken out between the signal lines S + and S− into a constant voltage of 3 V, and supplies the constant voltage to the control circuit 101 as its power supply voltage. The output circuit 108 includes signal lines M1 to M16 to the fire receiver 4.
Is a circuit for controlling the ON / OFF between each of them and the common line C by a phototransistor, a relay or the like (not shown). One output IF unit 100 is provided with four output circuits 108, and each of the output circuits 108 is connected to four signal lines, and detects on / off of each of the four signal lines. ON / OFF of 16 signal lines can be controlled.

Next, the operation of the first embodiment of the present invention will be described in detail below. FIG. 10 is a diagram showing a normal monitoring mode and an operation flow at the time of failure in the normal monitoring mode. (1) Normal monitoring mode When a fire occurs in step S1, the fire detector 1 that detects smoke, heat, and the like of the automatic fire alarm system operates in step S2, or the person who found the fire presses the transmitter button. By pressing, the fire receiver 4 receives the fire signal via the fire relay device 2 (not shown in FIG. 10). Then, in step S3, the fire receiver 4 performs a fire notification operation (fire display), determines a fire occurrence position (floor-specific processing), and outputs a notification to the NS monitoring panel 80.

The NS monitoring panel 80 performs a fire input display in step S4 and sends an NS valve activation signal to the NS repeater 50 corresponding to the fire occurrence position. The NS repeater 50 that has received the activation signal opens the activation valve 29 in the NS valve unit 20 in step S5, and the activation valve 2
When the valve 9 is fully opened and is in a standby state, the NS valve unit 2
0 is the start valve 2 to the NS monitoring panel 80 via the NS repeater 50
9 is transmitted. The NS monitoring panel 80 that has received the opening signal of the starting valve 29 determines in step S6 that the starting valve 2 of the floor is in question.
9 indicates that it has been released.

Following the standby state of the NS valve 21 in step S7, when the NS head 8 is opened in step S8, the secondary pressure in the secondary pipe 25 decreases.
When the NS valve 21 is opened in step S9 and the pressure switch 45 detects flowing water, the NS repeater 50 sends a flowing water signal to the NS monitoring panel 80. N in step S10
Since the S monitoring panel 80 displays the water discharge area, performs an alarm operation, and outputs a notification to the fire receiver 4, the fire receiver 4 performs the same display and alarm as the NS monitoring panel 80 in step S11. .

Thereafter, in step S12, the NS head 8
Discharges the regulated fire extinguishing water, so that step S13
When the pressure of the pressure air tank (not shown) decreases and the pressure switch (not shown) operates, the pump unit 9 is automatically started in step S14. This means that N
In step S15, the NS monitoring panel 80
Is displayed on the fire receiver 4 in step S16. Thereafter, in step S17, the NS valve 21 supplies the regulated fire extinguishing water, and in step S18, the fire is extinguished. As a result, the NS monitoring panel 80 sends a stop signal for restoring the NS valve 21 and stopping water discharge to the NS valve unit 20 via the NS repeater 50 in step S19, and closes the activation valve 29 in step S20. To stop water discharge. In addition, the NS monitoring panel 80 restores the display / warning of the fire receiver 4 in step S21.

(2) Operation at the time of failure in the normal monitoring mode When the NS repeater 50 detects the open / closed state of the valves around the NS valve or a drop in the secondary pressure in step S31, the NS repeater 50 issues a signal indicating the abnormal state to the NS. It is sent to the monitoring panel 80. The NS monitoring panel 80 displays and warns an abnormal state according to the content of the signal received in step S32, and outputs a notification to the fire receiver 4. The fire receiver 4 determines NS in step S33.
The same display and alarm as the monitoring panel 80 are performed. In addition, a failure of the NS system itself is displayed and alarmed in steps S34 and S35 as in steps S32 and S33. Step S
If there is a failure in the automatic fire alarm (self-fire alarm) at 36,
The fire receiver 4 notifies this to the NS monitoring panel 80, and the NS monitoring panel 80 performs automatic switching of the operation mode or displays the single operation mode in step S37.

(3) Single operation mode FIG. 11 is a diagram showing an operation flow in the single operation mode. The single operation mode is a mode used when the fire receiver 4 is in a transfer stop state for inspection or the like. At step S41, a fire occurs, and the heat causes the NS head 8 to be opened at step S42.
When the secondary pressure lowering pressure switch 48 detects that the pressure in the secondary side pipe 25 of the NS valve 21 has decreased in 3, the NS repeater 50 outputs a secondary pressure decreasing signal to the NS monitoring panel 80.
To send to. The NS monitoring panel 80 recognizes the received secondary pressure drop signal as a fire signal, performs a fire display in step S44, and sends an NS valve activation signal to the NS repeater 50. The NS repeater 50 that has received the activation signal activates the activation valve 2 in the NS valve unit 20 in step S45.
When the start valve 29 is fully opened to enter a standby state, the NS valve unit 20 sends an open signal of the start valve 29 to the NS monitoring panel 80 via the NS repeater 50. The NS monitoring panel 80 that has received the opening signal of the starting valve 29 displays in step S46 that the starting valve 29 of the floor is opened.

Since the NS head 8 is opened in step S42, when the NS valve 21 is opened in step S47 and the pressure switch 45 detects flowing water, the NS repeater 50 transmits a flowing water signal to the NS monitoring panel 80. Send to In step S48, the NS monitoring panel 80 displays the water discharge area, performs an alarm operation, and outputs a notification to the fire receiver 4.

Thereafter, in step S49, the NS head 8
Discharges the regulated fire extinguishing water, so that step S50
When the pressure in the pressurized air tank (not shown) decreases and the pressure switch (not shown) operates, the pump unit 9 is automatically started in step S51. This means that N
In step S52, the NS monitoring panel 80 is used by the S repeater 50.
Will be displayed. Then, in step S53, the NS valve 21 discharges the regulated fire extinguishing water, and in step S54, the fire is extinguished.

(4) Backup Operation Mode FIG. 12 is a diagram showing an operation flow in the backup operation mode. Switch SW of NS monitoring panel 80 (Fig. 7)
Is operated to input a backup operation to the backup power supply circuit 87, the backup power supply lines PKC and PK
Is turned on, and the control function of the NS monitoring panel 80 is stopped in step S60.

In step S61, a fire occurred, the NS head 8 was opened in step S62 due to the heat, and in step S63, the pressure in the secondary pipe 25 of the NS valve 21 was reduced. When the pressure-decreasing pressure switch 48 detects, the relay K (emergency operation circuit) in the NS repeater 50 is excited, and the activation valve 29 in the NS valve unit 20 is opened in step S64 by the voltage of the backup power supply line PKC. Be operated. Since the NS head 8 is opened in step S62, the NS head 8 discharges the regulated fire extinguishing water in step S65, and the pressure in the pressurized air tank (not shown) decreases in step S66. When a pressure switch (not shown) is operated,
At 67, the pump unit 9 is automatically started. afterwards,
In step S69, the NS valve 21 supplies the regulated fire extinguishing water, and in step S69, the fire is extinguished.

Next, the system maintenance and management according to the first embodiment of the present invention will be described. (1) Remote test sequence Anomaly detection of a static system is performed by status monitoring, but dynamic reliability can be confirmed by performing a remote test. In this test, it is possible to remotely control the running water equivalent to that during the operation of the NS head and automatically test the control alarm function of the NS valve and the like to confirm the function. NS
The valve 21 has a built-in remote test function corresponding to a terminal test valve provided in the conventional sprinkler fire extinguishing equipment, and is operated by operating a test start button on the NS monitoring panel 80.
A test according to a predetermined programmed sequence is performed on the NS valve units 20 provided on each floor, and N
The control functions of the S valve unit 20 and the NS monitoring panel 80 are checked for each step.

FIG. 13 is a diagram showing an operation flow of the remote test sequence. When the switch SW of the NS monitor panel 80 is operated in step S71 to input a remote test to the NS monitor panel 80, the NS monitor panel 80 displays the remote test and the remote test address in step S72, and the remote test valve 2
6 is sent to the remote test valve 26 in the NS valve unit 20 via the NS repeater 50. Step S7
After the remote test valve 26 is opened at 3 and the full open signal is returned within 20 seconds, the NS monitoring panel 8
0 indicates that the remote test valve 26 is open in step S74. After the remote test valve 26 is fully opened (or before the fully opened signal), after checking that the secondary pressure drop signal generated in step S75 returns within 3 minutes, the NS monitoring panel 80
Displays the decrease in the secondary pressure in step S76 and sends an open signal of the start valve 29 to the start valve 29 in the NS valve unit 20 via the NS relay 50. Step S
After checking that the start valve 29 is fully opened at 77 and that the fully open signal is returned within 20 seconds, the NS monitoring panel 80 displays the opening of the start valve 29 at step S78.

After the start valve 29 is fully opened (or before the fully opened signal), it is checked that the running water signal generated in step S79 returns within 3 minutes, and then the NS monitoring panel 8 is checked.
0 indicates that the NS valve 21 is open in step S80 and sends a signal to close the remote test valve 26 to the remote test valve 26 via the NS repeater 50. After checking that the remote test valve 26 is closed in step S81 and that the fully closed signal is returned within 20 seconds, the NS monitoring panel 80 displays the close of the remote test valve 26 in step S82. In the meantime, in step S83, the NS monitoring panel 80
Is transmitted to the activation valve 29 via the NS repeater 50. After checking that the start valve 29 is closed in step S84 and that the fully closed signal is returned within 20 seconds, N
The S monitoring panel 80 displays the closing of the starting valve 29 in step S85.

Thereafter, in step S86, the NS valve 2
1 to stop the flowing water signal, this is displayed in step S87, and the secondary pressure drop signal is restored in step S88.
After displaying at 9 and confirming that the above response falls within 10 seconds, it is displayed at step S90 that the remote test has been completed. In the event of an abnormality, the NS valve 21 is restored and the number of the NS valve 21 having an abnormality and an abnormal step are displayed. If the end switch is operated or a fire signal is input during the test, the NS valve 21 is restored to return to the normal operation.

(2) Remote automatic test The remote test described above is performed by using a small address N (within a specified range).
It is performed sequentially from the S valve 21. After the end of the test, if the test is normal, a normal display is displayed and the mode returns to the normal monitoring mode. If there is an abnormality during the test, the abnormality location and the cause of the abnormality are printed by a built-in printer (not shown), and after the operation is completed, the operation returns to the normal monitoring mode. (3) Automatic disconnection monitoring The electric circuit between the NS monitoring panel 80 and the NS repeater 50 is constantly monitored, and an alarm is displayed when a disconnection occurs. (4) Operation test This is a test for confirming whether the signal reception and the alarm function of the NS monitoring panel 80 operate normally. The operation is started by operating an operation test switch on a control panel (not shown). (5) Preliminary power supply test The abnormality of the backup power supplies 84a and 87a in the NS monitoring panel 80 is automatically tested.

In the NS system according to the first embodiment, the activated fire detector 1 sends a fire signal to the fire receiver 4, and the fire receiver 4 determines the fire occurrence floor from the fire signal and determines the NS monitor panel 80. According to the information, the NS monitoring panel 80 sends a start command to the NS repeater 20 on the corresponding floor. However, the fire detector sends a detection value, and the fire receiver determines the fire. In addition, the fire detector 4 determines the floor where the fire occurred and sends the information to the NS monitoring panel 80. However, the fire receiver 4 sends out fire information such as the address of the fire detector, and the NS. The fire occurrence floor may be determined on the monitoring panel. Therefore, as the present invention,
The fire on the floor where the NS head is provided is notified to the NS monitoring panel via the fire receiver by the signal of the fire detector on the corresponding floor, and the NS monitoring panel sends an activation signal to the NS repeater on the corresponding floor. Anything should do. In the above-described embodiment, NS of the local valve device is controlled by opening control of the start valve 29.
Although the valve 21 is in a state where it can be pressurized and released, in the present invention, it is only necessary that the valve 21 can be in a state where water can be released when the head is opened. It may be an open type or an electric type that is directly opened.

Embodiment 2 FIG. FIG. 14 is a schematic configuration diagram showing Embodiment 2 of the sprinkler fire extinguishing equipment according to the present invention together with a conventionally well-known automatic fire alarm equipment. In FIG.
The sprinkler head does not need to be a fast-moving type, and may be a normal wet type.
It is represented by reference numeral 8A. Similarly, the regional valve device is referred to as an automatic alarm valve and is designated by reference numeral 20A, the sprinkler repeater is designated by an SP repeater and designated by reference numeral 50A, and the sprinkler monitor is designated by an SP monitor and designated by reference numeral 80A. Other configurations are the same as those of the NS system shown in FIG.

Next, a sprinkler fire extinguishing system (hereinafter, referred to as an SP system) according to a second embodiment of the present invention will be described. In this SP system, a fire occurs on, for example, the second floor 2F, and the heat causes the SP to occur. When the head 8A is opened, the secondary side pipe 25 and the secondary side 24 of the automatic alarm valve 20A provided on the second floor and schematically shown in FIG.
Pressure drops. And the primary side 2 of the automatic alarm valve 20A
Operating valve 4 due to the differential pressure generated between
Reference numeral 9a rotates around the arm shaft 49b in the valve opening direction (the direction of the arrow). The valve body 35 provided on the lower surface of the operation valve 49a is separated from the valve seat 33. As a result, fire extinguishing water flows from the water supply main pipe 6 (FIG. 14) through the primary side 22 and the valve seat 3
Part of the fire extinguishing water passing through the opening 3 reaches the pressure switch 45 via the flowing water detection chamber 46 and the pipe 22c. Therefore, the pressure switch 45 operates to send the flowing water signal to the second floor 2F.
SP repeater 50 and common signal line 12
Is sent to the SP monitoring panel 80A via the, so that the SP monitoring panel 80A displays a water discharge warning on the panel. Also, S
When the pressure of the pressure air tank (not shown) decreases due to the start of water discharge by the P head 8A, the pump unit 9
Is started automatically. Reference numeral 49c denotes a main valve provided near the primary side 22 of the automatic alarm valve 20A, and the state detection limit switch 49d is also connected to the SP repeater 5 by an electric circuit.
0A.

Such a series of monitoring and control is performed by the SP monitoring panel 80A installed in the disaster prevention center. Each automatic alarm valve 20A is provided with a corresponding SP repeater 50A.
An information signal is transmitted and received between the P repeater 50A and the SP monitor panel 80A by serial transmission. SP monitoring panel 80A
Performs the transmission and reception of a fire signal and a water discharge signal to and from the fire receiver 4 of the automatic fire alarm system, and constitutes a disaster prevention system integrated with the automatic fire alarm system. Note that the SP repeater 50A and the SP monitoring panel 80A dedicated to the SP system are installed as separate signal systems independent of the signal system of the automatic fire alarm system. The various information signals are collected from the corresponding automatic alarm valve 20A to the SP repeaters 50A arranged on each floor, coded here, and transmitted to the SP monitor panel 80A in a polling and selecting manner. The SP monitoring panel 80A has an alarm buzzer, an LCD kanji character display unit, an operation unit, and has a built-in printer.

FIG. 16 is a wiring diagram partially showing a block diagram of the SP repeater 50A used in the second embodiment of the present invention. The SP repeater 50A is a transmission terminal of the SP monitor panel 80A, and is electrically connected to an automatic alarm valve 20A (or an auxiliary sprinkling faucet monitoring valve (not shown)) which is an input / output device of the SP system. , SP monitoring panel 80A. The SP repeater 50A further detects the state of the automatic alarm valve 20A, transmits the detected state as an encoded information signal to the SP monitoring panel 80A together with its own address, and encodes the information with the SP monitoring panel 80A. When the received control signal is transmitted and received, it is determined whether or not the command is directed to itself based on the address, and then the control signal is analyzed to control (start and return) the automatic alarm valve 20A.

The SP repeater 50A includes a control circuit 51A. The control circuit 51A includes a microprocessor MPU5 which is a control center, and a memory R in which a program is stored.
OM5, memory RAM5 for storing signals and data, S
Interface IF5 with each part in P repeater 50A
1, IF52 and IF53.

The transmission circuit 52A in the SP repeater 50A
Are connected to the IF 53 and have signal lines SA +, SA
And transmit / receive data to / from the SP monitor panel 80A by serial transmission, and include an A / D converter, a D / A converter, and the like (not shown). The address setting unit 53A
When transmitting to and receiving from the P monitoring panel 80A, each SP repeater 50A
This is a part for individually setting an address for distinguishing the address, for example, by setting a dip switch (not shown). The power supply circuit 54A includes a power supply line P to be described later.
The power supply voltage of, for example, DC 24 V from the VCA and PVA is converted to a predetermined voltage, for example, 20 V, and is mainly supplied to a response circuit described later. The constant voltage circuit 55A includes signal lines SA +, SA
The voltage taken out from between-is converted into a constant voltage of, for example, 3 V and supplied to the control circuit 51A as its power supply voltage. The voltage monitoring circuit 56A is connected to the power supply circuit 54A.
When the voltage of 0 V is monitored and a voltage drop due to a poor connection of the power supply lines PVCA and PVA is detected, MP via the IF 52 is detected.
Notify U5.

The relay U controls the opening of the remote test valve 26 in the automatic alarm valve 20A shown in FIG. 17, and switches the contacts u1 and u2 when energized to reduce the voltage from the power line PVCA. u1-terminals A and A-contacts 26d to be described later-motorized parts 26a-diodes 2
The remote test valve 26 is opened because it is applied via the 6c-terminal B and the A-contact u2-ground PVA. The contact 26d is a limit switch, which is mechanically switched when the electric unit 26a operates to the full open position, thereby preventing unnecessary voltage application. However, when the relay U is demagnetized, it returns to the state shown in FIGS. 16 and 17 and the power supply voltage is applied in the reverse direction, so that the remote test valve 26 is closed,
As in the case of full opening, the state shown in FIG. 17 is obtained when fully closed, preventing application of a reverse voltage. These contacts 29d and 29e are switched when they are fully opened or fully closed, but are switched by a slight movement in the opposite direction.

The response circuit 57A is a circuit for detecting, using a phototransistor or the like, ON / OFF of a contact caused by the operation of each part of the automatic alarm valve 20A, for example, the pressure switch 45 or the limit switch 49d, such as the full closing of the remote test valve 26 or the like. For example, when the remote test valve 26 is fully opened, the PVCA-u1-A
The response circuit 57A detects that the remote test valve 26 is fully open by the A-contact 26d (fully open), the terminal A, and the A-response circuit 57A-ground PVA.

FIG. 18 is a block diagram showing an SP monitor panel 80A used in the second embodiment of the present invention. The SP monitor panel 80A displays an alarm when the SP head 8A is opened, and performs a process of transmitting a water discharge signal to an automatic fire alarm system. In addition, about the auxiliary spigot (not shown), an alarm is displayed by the fire hydrant valve opening signal. SP monitoring panel 80A
Has a status monitoring function, which constantly monitors each part of the system. If the automatic alarm valve 20A and the main valve 49c (FIG. 15) are opened or closed and the localization is removed, such as during maintenance and inspection, a status error is displayed on the panel. Display and alert the location. The remote automatic test function of the SP monitor 80A is based on a programmed sequence,
A remote operation test is sequentially performed on the fully automatic alarm valve 20A, and when an operation function is checked, if there is an abnormality, the cause is displayed, printed out, and a test abnormality alarm is issued. In addition, it is possible to perform automatic disconnection monitoring of the electric circuit of the SP monitoring system, and it is also possible to easily perform an operation test and a standby power supply test.

The SP monitor panel 80A includes a control circuit 81A. The control circuit 81A includes a microprocessor MPU6, which is a control center, and a memory R in which a program is stored.
OM6, memory RAM6 for storing signals and data, S
Interface IF61 with each part of P monitoring panel 80A,
It has IF62 and IF63.

The transmission circuit 82A in the SP monitor panel 80A
Is connected to the IF 62 to transmit and receive between the signal lines SA + and SA− to and from each SP repeater 50A by serial transmission, and is controlled by a one-chip microcomputer (not shown). The alarm 83A is, for example, a buzzer connected to the IF 63. Power supply circuit 84A is AC100V
Is a circuit for converting the commercial power supply voltage to a constant voltage of, for example, 24 VDC and supplying it to a necessary place.
And the input IF unit 9 described above with reference to FIGS.
0 and the power supply lines PVCA, PV to the output IF unit 100.
A supplies power during operation, and has a standby power supply 84Aa when commercial power is down. The display control circuit 86A is connected to the IF 61, and the liquid crystal display L
The display of the CD, the lighting of various light emitting diodes LED, and the input monitoring of the switch SW are performed.

Next, the system maintenance and management according to the second embodiment of the present invention will be described. (1) Remote test sequence Anomaly detection of a static system is performed by status monitoring, but dynamic reliability can be confirmed by performing a remote test. In this test, running water equivalent to that during the operation of the SP head is remotely operated, and the alarm function of the automatic alarm valve 20A can be automatically tested to confirm the function. The automatic alarm valve 20A has a built-in remote test function corresponding to a terminal test valve provided in a conventional sprinkler fire extinguishing system, and is operated by operating a test start button on the SP monitoring panel 80A. A test is performed on the alarm valve 20A according to a predetermined programmed sequence, and the alarm function is confirmed step by step.

FIG. 19 is a diagram showing an operation flow of the remote test sequence. SP monitoring panel 80 in step S101
When the remote test input is performed to the SP monitoring panel 80A by operating the switch SW of A, the SP monitoring panel 80A causes the SP monitoring panel 80A to execute step S102.
To display the remote test and the remote test address, and send an open signal of the remote test valve 26 to the remote test valve 26 in the automatic alarm valve 20A via the SP repeater 50A. In step S103, the remote test valve 26 is opened, and after checking whether or not a fully open signal is returned within 20 seconds, SP
The monitoring panel 80A displays the opening of the remote test valve 26 in step S104. After the remote test valve 26 is fully opened (or before the fully opened signal), after checking that the running water signal generated in step S105 returns within 3 minutes, the SP monitoring panel 80A turns on the automatic alarm valve 20A in step S106. Is displayed and the remote test valve 26 close signal is sent to SP
It sends out to the remote test valve 26 via the relay 50A. After checking that the remote test valve 26 is closed in step S107 and that the fully closed signal is returned within 20 seconds, the SP monitoring panel 80A displays the close of the remote test valve 26 in step S108.

Thereafter, the running water signal is stopped by closing the automatic alarm valve 20A in step S109, and this is displayed in step S110.
After confirming that it falls within 0 seconds, step S111
Indicates that the remote test has been completed. In the event of an abnormality, the remote test valve 26 is restored and the number of the abnormal automatic alarm valve 20A and the abnormal step are displayed. If the end switch is operated or a fire signal is input during the test, the remote test valve 26 is restored to return to the normal operation.

(2) Remote automatic test The remote test is performed sequentially from the automatic alarm valve 26 having a smaller address (in a specified range). After the end of the test, if the test is normal, a normal display is displayed and the mode returns to the normal monitoring mode. If there is an abnormality during the test, the abnormality location and the cause of the abnormality are printed by a built-in printer (not shown), and after the operation is completed, the operation returns to the normal monitoring mode. (3) Automatic disconnection monitoring The electric circuit between the SP monitor panel 80A and the SP repeater 50A is constantly monitored, and an alarm is displayed when a disconnection occurs. (4) Operation test This is a test for confirming whether the signal reception and the alarm function of the SP monitoring panel 80A operate normally. The operation is started by operating an operation test switch on a control panel (not shown). (5) Preliminary power supply test An abnormality of the backup power supply 84Aa in the SP monitor panel 80A is automatically tested.

[0080]

According to the first aspect of the present invention, there is provided a water supply main pipe extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main pipe and branching into each of the plurality of floors. , A number of sprinkler heads provided in each branch pipe,
A district valve device provided between the water supply main pipe and each branch pipe to supply fire extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device to change a state of the corresponding district valve device. A sprinkler repeater that detects and controls the corresponding regional valve device, a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater, a large number of fire detectors provided on each floor, A fire detector and a fire receiver electrically connected to the sprinkler monitoring panel, wherein the fire detector sends a fire signal to the fire receiver when detecting the occurrence of a fire, and the fire receiver Sending a signal based on the fire signal to the sprinkler monitoring panel, the sprinkler monitoring panel sending an activation signal to a sprinkler repeater on the fire floor based on the fire signal, Since the sprinkler repeater controls the opening of the starting valve in the corresponding district valve device based on the starting signal, the starting signal for controlling the opening of the starting valve in the district valve device on the floor where the fire is detected is reliably provided. This has the effect of being able to be transmitted to

According to a second aspect of the present invention, there is provided a water supply main pipe extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main pipe and branching from each of the plurality of floors.
A number of sprinkler heads provided in each branch pipe, a district valve device provided between the water supply main pipe and each branch pipe to supply fire extinguishing water to the plurality of sprinkler heads; Sprinkler repeaters that are electrically connected and detect the state of the corresponding regional valve device and control the corresponding regional valve device, a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater, A fire detector provided on each floor and a fire receiver electrically connected to the fire detector and the sprinkler monitor panel. The sprinkler monitor panel receives a fire signal from the fire receiver. The sprinkler repeater is detected based on the fact that the sprinkler head is opened by the heat of the fire and the secondary pressure of the corresponding regional valve device decreases. , Sends a secondary pressure drop signal to the sprinkler monitoring panel, and the sprinkler monitoring panel sends a start signal to the sending sprinkler repeater based on the secondary pressure drop signal, and the sprinkler repeater transmits the start signal. Since the start valve in the corresponding district valve device is controlled to be opened based on the signal, there is an effect that the start signal can be transmitted even if the fire receiver cannot transfer the fire signal.

According to a third aspect of the present invention, there is provided a water supply main pipe extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main pipe and branching into each of the plurality of floors.
A number of sprinkler heads provided in each branch pipe, a district valve device provided between the water supply main pipe and each branch pipe to supply fire extinguishing water to the plurality of sprinkler heads; Sprinkler repeaters that are electrically connected and detect the state of the corresponding regional valve device and control the corresponding regional valve device, a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater, A large number of fire detectors provided on each floor, and a fire receiver electrically connected to the fire detectors and the sprinkler monitoring panel, wherein the heat of the fire causes the sprinkler head to open and correspond. Based on the decrease in the secondary pressure of the district valve device, the sprinkler repeater sends a secondary pressure decrease signal to the sprinkler monitoring panel, and the sprinkler monitoring panel When there is a fire determination input based on the secondary pressure drop signal, a start signal is sent to the sprinkler repeater, and the sprinkler repeater opens the corresponding start valve in the corresponding regional valve device based on the start signal. Since the control is performed, even if the signal from the automatic fire alarm system is delayed, there is an effect that the fire extinguishing activity can be performed by the district valve device state signal detected by the sprinkler repeater.

According to a fourth aspect of the present invention, there is provided a water supply main pipe extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main pipe and branching from each of the plurality of floors.
A number of sprinkler heads provided in each branch pipe, a district valve device provided between the water supply main pipe and each branch pipe to supply fire extinguishing water to the plurality of sprinkler heads; Sprinkler repeaters that are electrically connected and detect the state of the corresponding regional valve device and control the corresponding regional valve device, a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater, A large number of fire detectors provided on each floor, and a fire receiver electrically connected to the fire detectors and the sprinkler monitoring panel, the sprinkler repeater allows the sprinkler monitoring panel to transmit and receive signals. The sprinkler head is opened by the heat of the fire and the secondary pressure of the corresponding district valve device is reduced, and the fire is stopped. Rinkura repeater, since the opening control of the activation valve in the corresponding section valve device, an effect that even without a start signal allows the fire fighting. The invention according to claim 5 extends through a plurality of floors of a building such as a building.
Water mains and each of the plurality of floors from the water mains
Branch pipes that are branched from each other and are provided on each branch pipe
Numerous sprinkler heads, the water mains and each branch
Between the sprinkler heads to extinguish fire
District valve devices that supply water and electrically connect with each district valve device
To detect the status of the corresponding regional valve device and
Sprinkler repeater for controlling the corresponding regional valve device
And connected via a common signal line with each sprinkler repeater
And a sprinkler monitoring panel.
The monitoring panel is a power supply circuit that converts commercial power supply voltage to DC constant voltage.
And between the power circuit and each sprinkler repeater.
Power line and convert the commercial power voltage to a DC constant voltage
Backup power supply circuit and backup power supply
Bars wired between the source circuit and each of the sprinkler repeaters
Power supply line for backup,
Prevent function down and ensure minimum water discharge function
This has the effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an NS system according to the present invention together with a conventionally well-known automatic fire alarm system.

FIG. 2 is a diagram illustrating an example in which all NS repeaters are divided into a plurality of groups.

FIG. 3 is a diagram illustrating an operation example of FIG. 2;

FIG. 4 is a schematic configuration diagram showing an NS valve unit used in Embodiment 1 of the present invention.

FIG. 5 is a wiring diagram partially showing a block diagram of an NS repeater used in the first embodiment of the present invention;

FIG. 6 is a wiring diagram showing an electrical part of the NS valve unit of FIG. 4;

FIG. 7 is a block diagram showing an NS monitoring panel used in Embodiment 1 of the present invention.

FIG. 8 is a block diagram showing an input IF unit in the NS monitoring panel of FIG. 7 in detail.

FIG. 9 is a block diagram showing an output IF unit in the NS monitoring panel of FIG. 7 in detail.

FIG. 10 is a diagram showing an operation flow in a normal monitoring mode.

FIG. 11 is a diagram showing an operation flow in an independent operation mode.

FIG. 12 is a diagram showing an operation flow in a backup operation mode.

FIG. 13 is a diagram showing an operation flow of a remote test sequence.

FIG. 14 is a schematic configuration diagram showing an SP system according to the present invention together with a conventionally well-known automatic fire alarm system.

FIG. 15 is a schematic configuration diagram showing an automatic alarm valve used in Embodiment 2 of the present invention.

FIG. 16 is a wiring diagram partially showing a block diagram of an SP repeater used in Embodiment 2 of the present invention;

FIG. 17 is a wiring diagram showing an electrical part of the automatic alarm valve of FIG. 15;

FIG. 18 is a block diagram showing an SP monitor panel used in Embodiment 2 of the present invention.

FIG. 19 is a diagram showing an operation flow of a wet remote test sequence.

[Description of Signs] 1 Fire detector 2 Fire relay 4 Fire receiver B1F-4F Building floor 6 Water supply main pipe 7 Branch pipe 8 NS head 8A SP head 12 Common signal line 20 NS valve unit 20A Automatic alarm valve 50 NS repeater 50A SP repeater 80 NS monitor panel 80A SP monitor panel

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-266776 (JP, A) JP-A-4-276271 (JP, A) JP 4-48470 (JP, B2) (58) Field (Int. Cl. ⁷ , DB name) A62C 27/00-39/00

Claims (5)

(57) [Claims] 1. A water supply main pipe extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main pipe and extending from the water supply main pipe to each of the plurality of floors, and provided on each branch pipe. A number of sprinkler heads, a district valve device that is provided between the water supply main pipe and each branch pipe and supplies fire extinguishing water to the number of sprinkler heads, and is electrically connected to each district valve device, A sprinkler repeater that detects the state of the district valve device and controls the corresponding district valve device; a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater; A fire detector, and a fire receiver electrically connected to the fire detector and the sprinkler monitoring panel, wherein the fire detector sends a fire signal to the fire receiver when detecting the occurrence of a fire. The fire receiver sends a signal based on the fire signal to the sprinkler monitoring panel, and the sprinkler monitoring panel sends a start signal to a sprinkler repeater on the fire occurrence floor based on the fire signal. The sprinkler fire extinguishing equipment, wherein the sprinkler repeater controls opening of the corresponding start valve in the regional valve device based on the start signal. 2. A water supply main pipe extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main pipe and branching from each of the plurality of floors, and provided at each branch pipe. A number of sprinkler heads, a district valve device that is provided between the water supply main pipe and each branch pipe and supplies fire extinguishing water to the number of sprinkler heads, and is electrically connected to each district valve device, A sprinkler repeater that detects the state of the district valve device and controls the corresponding district valve device; a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater; A fire detector, and a fire receiver electrically connected to the fire detector and the sprinkler monitor panel, wherein the sprinkler monitor panel cannot receive a fire signal from the fire receiver. The sprinkler repeater sends a secondary pressure drop signal to the sprinkler monitoring panel based on the fact that the sprinkler head is opened by the heat of fire and the secondary pressure of the corresponding district valve device is reduced. The sprinkler monitoring panel sends an activation signal to the transmission sprinkler repeater based on the secondary pressure drop signal, and the sprinkler repeater transmits the start signal to the corresponding regional valve device based on the start signal. Sprinkler fire extinguishing equipment, characterized in that opening control of a start valve is performed. 3. A water supply main pipe extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main pipe and branching from each of the plurality of floors, and provided at each branch pipe. A number of sprinkler heads, a district valve device that is provided between the water supply main pipe and each branch pipe and supplies fire extinguishing water to the number of sprinkler heads, and is electrically connected to each district valve device, A sprinkler repeater that detects the state of the district valve device and controls the corresponding district valve device; a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater; A fire detector, and a fire receiver electrically connected to the fire detector and the sprinkler monitoring panel, wherein the heat of the fire opens the sprinkler head to open the corresponding district valve. The sprinkler repeater sends a secondary pressure drop signal to the sprinkler monitoring panel based on a decrease in the secondary pressure of the sprinkler monitoring panel, and the sprinkler monitoring panel has a fire determination input based on the secondary pressure drop signal. In this case, a start signal is sent to the sprinkler repeater, and the sprinkler repeater controls opening of a start valve in the corresponding regional valve device based on the start signal. 4. A water supply main pipe extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main pipe and extending from the water supply main pipe to each of the plurality of floors, and provided on each branch pipe. A number of sprinkler heads, a district valve device that is provided between the water supply main pipe and each branch pipe and supplies fire extinguishing water to the number of sprinkler heads, and is electrically connected to each district valve device, A sprinkler repeater that detects the state of the district valve device and controls the corresponding district valve device; a sprinkler monitoring panel connected via a common signal line to each sprinkler repeater; A fire detector, and a fire receiver electrically connected to the fire detector and the sprinkler monitor panel, wherein the sprinkler repeater cannot transmit and receive signals to the sprinkler monitor panel. The sprinkler repeater detects that the sprinkler head has been opened due to the heat of the fire and the secondary pressure of the corresponding district valve device has been reduced. A sprinkler fire extinguishing system, characterized in that the starting valve is controlled to open. 5. Extending through a plurality of floors of a building, such as a building.
Water mains and each of the plurality of floors from the water mains.
A branch pipe extending branches into doo, a number of sprinkler heads provided on each branch pipe is provided between the water mains and the branch pipes, the plurality of scan
District valve devices that supply fire extinguishing water to the pudding head and the corresponding district valve devices that are electrically connected to each district valve device
And control the corresponding regional valve device
A sprinkler repeater that are connected via a common signal line and the sprinkler repeater
A sprinkler monitoring panel , wherein the sprinkler monitoring panel includes a power supply circuit for converting a commercial power supply voltage into a DC constant voltage, and a
Power supply wired between power supply circuit and each sprinkler repeater
Line and backup for converting the commercial power supply voltage to DC constant voltage
Power supply circuit, the backup power supply circuit and each of the switches.
Backup power supply wired between the PRINCLA repeaters
And a wire .