JPH0759875A - Sprinkler fireproof equipment - Google Patents

Abstract

PURPOSE:To extinguish a fire by a fire signal from a fire sensor by constituting the equipment so that the fire sensor sends out a signal based on a fire generation signal which detects generation of a fire to a sprinkler monitoring panel, and the sprinkler monitoring panel sends out an actuating signal to a sprinkler repeater in a fire generated floor and executes opening control of an actuation valve in an area valve device. CONSTITUTION:When a fire is generated, for instance, in a second floor 2F, and a fire sensor 1 operates and generates a fire signal, the fire signal is transmitted to a fire repeater 2, and transmitted to a fire receiver from the fire repeater 2. Thus, a virtual receiver processes the fire signal as each separate floor fire signal, and thereafter, transfers and informs a sprinkler monitoring panel 80 of the signal. The sprinkler monitoring panel 80 transmits an encoded control signal by designating an address to a sprinkler repeater 50 in a second floor 2F, and the sprinkler repeater 50 transmits the control signal to the corresponding sprinkler valve unit 20, and sets the sprinkler valve unit 20 to a stand-by state. Thereafter, when a sprinkler head 8 opens a plug by head of a fire, pressurized water for fire-fighting is discharged.

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 a fire detecting means, and more particularly to a sprinkler fire extinguishing system equipped with a dedicated sprinkler repeater and a sprinkler monitoring panel.

[0002]

2. Description of the Related Art As a sprinkler fire extinguishing equipment used in combination with a fire detector, for example, JP-A-4-276 is known.
The one disclosed in Japanese Patent No. 271 is conventionally known. The conventional sprinkler fire extinguishing equipment disclosed in this publication is opened by a fire signal from a fire detector,
It is equipped with a regional valve device that supplies the fire extinguishing water from the primary side pipe to the sprinkler head via the secondary side pipe.

[0003]

However, since the conventional sprinkler fire extinguishing equipment is not provided with a dedicated sprinkler repeater or 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 I could not do it. Then, this invention aims at obtaining the sprinkler fire extinguishing equipment which can extinguish a fire by the fire signal from a fire detector. It is another object of the present invention to provide a sprinkler fire extinguishing equipment capable of extinguishing a fire by opening the sprinkler head even if the fire receiver cannot transmit a fire signal.
A further object of the present invention is to provide a sprinkler fire extinguishing equipment capable of extinguishing a fire at the discretion of a supervisor even if a fire signal from a fire detector is not obtained. Still another object of the present invention is to provide a sprinkler fire extinguishing system capable of extinguishing a fire by opening the sprinkler head even if the sprinkler monitoring board cannot transmit or receive a signal.

[0004]

Claims 1 to 4
The invention according to claim 1 is provided with a water supply main extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main branching into each of the plurality of floors, and each branch pipe. A plurality of sprinkler heads, district valve devices provided between the main water supply pipe and each branch pipe and supplying fire extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device, and corresponding A sprinkler repeater for detecting the condition of the district valve device and controlling the corresponding district valve device;
A sprinkler monitoring panel connected to each sprinkler repeater via a common signal line, a number of fire detectors provided on each floor, and a fire reception electrically connected to the fire detectors and the sprinkler monitoring panel. And a machine.

[0005]

According to the invention of claim 1, the fire detector comprises:
When detecting the occurrence of a fire, sends a fire signal to the fire receiver, the fire receiver sends a signal based on the fire signal to the sprinkler monitoring board, the sprinkler monitoring board, based on the fire signal. A start signal is sent to the sprinkler repeater on the fire occurrence floor, and this sprinkler repeater controls the opening of the start valve in the corresponding regional valve device based on the start signal.

According to the second aspect of the present invention, the sprinkler monitoring board detects that the fire signal cannot be received from the fire receiver, and the sprinkler head is opened by the heat of the fire to open the corresponding area. Based on the decrease in the secondary pressure of the valve device, the sprinkler repeater sends a secondary pressure drop signal to the sprinkler monitor board, and the sprinkler monitor board 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 head is opened by the heat of the fire and the secondary pressure of the corresponding regional valve device is lowered. Sending a drop signal to the sprinkler monitoring board, the sprinkler monitoring board sends a start signal to the sprinkler repeater when there is a fire assertion input based on the secondary pressure drop signal, the sprinkler repeater, Based on the activation signal, the activation valve in the corresponding regional valve device is controlled to be opened.

According to the invention of claim 4, the sprinkler repeater detects that the sprinkler monitoring board cannot transmit or receive a signal, and the heat of the fire opens the sprinkler head to respond to the sprinkler head. Based on the decrease in the secondary pressure of the district valve device, the sprinkler repeater controls the opening of the starting valve in the corresponding district valve device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to an embodiment shown in the accompanying drawings. Example 1. 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, ... Represents a plurality of floors of a building such as a building, for example, a basement floor, a first floor, a second floor, a third floor, a fourth floor ... First, the automatic fire alarm facility will be described. 1 is a fire detector, which is provided in a large number on each floor of the building. Reference numeral 2 denotes a fire repeater provided for each floor, which is connected to a plurality of fire detectors 1 provided for each floor via a signal line 3. 4 is, for example, a disaster prevention center on the first floor (not shown)
The fire receiver is arranged inside and is for receiving a fire signal from the fire detector 1, and is connected to the fire repeater 2 on each floor via a common signal line 5. In addition, other necessary equipment for automatic fire alarm equipment such as sound in other areas is provided, but the description thereof is omitted here.

Next, the sprinkler fire extinguishing equipment of the present invention (hereinafter referred to as NS system) will be described.
This NS system uses the above-described automatic fire alarm system and a fast-moving sprinkler head (hereinafter referred to as NS head) that has a high thermal response speed in order to quickly extinguish the fire and minimize water damage due to the fire and fire. It is a new sprinkler system for extinguishing a small amount of water in the early stages of a fire. In FIG. 1, 6 is a water supply main that extends through a plurality of floors, and 7 is a branch pipe that branches from the water supply main 6 for each floor. Reference numeral 8 denotes a large number of NS heads provided on each branch pipe 7, which has a dramatically faster thermal response speed than a conventional sprinkler head (not shown), and is designed to detect an initial fire and extinguish it. It is a thing. In addition, the idea of increasing the thermal response speed is to improve the heat receiving efficiency and reduce the heat loss, in other words, to reliably capture the heat of the fire without letting it escape to the other. Specifically, the NS head 8 has a standard water discharge pressure of 1 kg /
cm ^2, flow rate 50 l / min, the office space placed one floor area 2.1 m ² per also for restaurant a small compartment floor area 13m ²
Only one unit is required per one, it has a smaller water discharge amount and a wider spraying area, and it can exhibit sufficient fire extinguishing ability even if the spraying density is reduced. Further, a water source (not shown) and a pump unit 9 are provided near the lower end of the main water supply pipe 6.

Reference numeral 20 denotes a regional valve device (hereinafter referred to as an NS valve unit) provided between the main water supply pipe 6 and each branch pipe 7 for supplying fire extinguishing water to a large number of NS heads 8. 4 will be described in detail later. Reference numeral 50 denotes a sprinkler repeater (hereinafter, referred to as an NS repeater) provided for each NS valve unit 20.
It is connected to the valve unit 20 via the signal line 11, and will be described later in detail with reference to FIG. And 80 is a sprinkler monitoring board (hereinafter,
It is called NS monitoring board. ), And all NS repeaters 50
And the fire receiver 4 which are connected via a common signal line 12 with
Is connected via a 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, for example, on the second floor 2F, so that at least one of the fire detectors 1 provided on the second floor 2F is activated. If a fire signal is generated by
This fire signal is fire repeater 2 installed on the second floor 2F.
To the fire receiver 4 from the fire repeater 2 via the common signal line 5.
Then, the fire receiver 4 processes the received fire signal on a floor-by-floor basis, and then sends the signal line 13 to the NS monitoring panel 80.
Transfer via.

The NS monitoring board 80 is connected via the common signal line 12 in this case to the NS repeater 50 provided on the second floor 2F.
Addressing and transmitting coded control signals 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 is to place the NS valve unit 20 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 fire, the pressurized fire extinguishing water whose pressure is automatically adjusted to the set pressure starts to be discharged from the NS head 8. Simultaneously with the start of the water discharge, the NS valve unit 20 transmits the coded water flow signal to the NS monitor panel 80 via the NS relay 50 together with its own address, so that the water discharge alarm is displayed on the NS monitor panel 80. It
Further, when the NS head 8 starts discharging water, the pump unit 9 is automatically started so that the fire extinguishing water passes from the water source to the NS head 8 through the pump unit 9, the water supply main 6, the NS valve unit 20 and the branch pipe 7. Continues 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 repeater 50-B1 is provided via the signal line 12 common to the NS monitoring board 80.
F to 50-5F are connected, the group G1 is composed of only NS relays 50-B1F, the group G2 is composed of NS relays 50-1F and 50-2F, and the group G3 is N.
S repeaters 50-3F and 50-4F, and group G4 consists only of NS repeaters 50-5F. In this way, the number of groups and the number of NS repeaters in each group can be arbitrarily determined.

The NS monitoring board 80 is an NS repeater 50-B1.
The system polling, point polling, and selecting described later are performed on F to 50-5F to collect predetermined information from a predetermined NS repeater and control a predetermined NS repeater.

Here, the system polling is not polling each of the NS relays 50-B1F to 50-5F, but dividing these NS relays into four groups and polling each group. In this polling, a group having an NS repeater that gives a response timing to each group and detects a change in the state of the corresponding district valve device responds to the NS monitoring board 80 at the response timing. Point polling is polling for each NS repeater within the group only for the group that responds to the NS monitoring panel 80 in system polling. The NS relay that gives a response timing to each NS repeater and detects the state change This is polling in which the repeater responds to the NS monitoring board 80 at the response timing. The selecting means collecting predetermined information from the NS relay responding to the NS monitoring board 80 in point polling, or transmitting a predetermined control signal to the NS relay responding to the NS monitoring board 80 in point polling. It is a thing.

FIG. 3 is a diagram for explaining the operation example of FIG.
The operation proceeds from the upper left to the upper right of FIG. 3, and the operation proceeds from the right end to the left end of the next lower stage, and the processing sequentially proceeds in this manner. Further, in FIG. 3, the operation above the horizontal line shows the operation of the NS monitoring board 80, and the operation below the horizontal line shows the operation of the NS repeater. Further, 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 bold frame indicates the NS repeater that has detected the state change compared to immediately before the response timing (or the group having the NS repeater that has detected the state change).

First, in P1 of FIG. 3, system polling is performed. That is, the NS monitoring board 80 sends the address SPAD indicating the system polling and the status information return command CM1 for returning the status information to the groups G1 to G4, and then sequentially sends the timings for returning the 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 board 80 at the time of its own response only when the NS repeater in its own group detects a state change. In the example shown in FIG. 3, since the NS relay 50-2F detects the state change, only the group G2 responds to the NS monitoring board 80. As a result, the NS monitoring board 80
NS repeater 50-1F or 50- belonging to group G2
It can be understood that 2F has detected the state change and has the state information to be sent to the NS monitoring board 80.

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

Next, in P3, selecting is performed. In other words, the NS monitoring panel 80 is the NS that issued the response signal.
The address SAD of the repeater and the status information return command CM1 are transmitted. In the case of the above example, since the response signal is received from the NS relay 50-2F, the NS monitoring board 80 sends out the address SAD (2F) of the NS relay 50-2F and the status information return command CM1. On the other hand, the NS repeater 5
0-2F displays the self address SAD (2F) and the desired data DA (for example, a secondary pressure drop signal) to be sent to the NS monitoring board 80.
Send to.

When the NS monitoring board 80 receives the data DA, the address SAD (2F) and the received data DA are received.
And the NS repeater 50-2F receives the data DA, collates the data DA sent immediately before itself with the data DA received at that time, and when both data match, the data DA It is sent again to the NS monitoring board 80.
If the data DA received at the first time matches the data DA received at the second time, the NS monitoring board 80 determines that the data DA is the data D sent by the NS repeater 50-2F.
Recognize as A. Then, the NS monitoring board 80 performs necessary processing such as display and simple alarm based on the received data DA. After this, the system returns to the normal state and the above system polling is repeated.

In the above example, point polling and selecting are each performed twice, but this is to prevent erroneous transmission due to induction noise or the like.

Next, the operation of inspecting the common signal line 12 for breaks will be described. In P01 of FIG. 3, the system polling is performed once, and then the NS repeater 50-B1F
Selection for inspecting the disconnection of the signal line 12 is performed. That is, the NS monitoring board 80 is the NS relay 50-B1.
F address SAD (B1F) and specific information return command CM
2, the NS relay 50-B1F returns the self address SAD (B1F) and the specific information (type information CL indicating the type of the NS relay) to the NS monitoring board 80. When the NS monitor board 80 receives the type information CL from the NS repeater 50-B1F, the NS monitor board 80 determines that there is no disconnection in the signal line 12 from the NS monitor board 80 to the NS repeater 50-B1F. Then, after performing system polling once and confirming that there is no NS relay that has detected the state change, the same disconnection inspection as described above is performed on the NS relay 50-1F. In this way, for each of the NS repeaters 50, the disconnection inspection of the signal line 12 from the NS monitoring board 80 to the NS repeater 50 is performed, and system polling is executed once during that time. 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 includes information indicating a pump unit repeater, an auxiliary sprinkler repeater, and the like, which will not be described in detail except for the NS repeater. Thus, if the NS monitoring board 80 collects the type information as the specific information, the type of the NS relay 50 is changed at the same time as the presence or absence of the connection of the NS relay 50 on the side of the NS monitoring board 80. Can be known from the NS monitoring board 80. In the above example,
Since the disconnection discrimination selecting is executed every time the system polling is performed once, the NS repeater 50-B
To monitor all 1F to 50-5F, it is necessary to perform system polling 16 times. The disconnection determination may be performed every time system polling is performed a predetermined number of times.
The disconnection determination may be performed every predetermined time, and
The disconnection discrimination selecting of a plurality of NS repeaters 50 may be performed at one time. In addition, for the same NS repeater 50,
Performing disconnection discrimination selection twice in succession can prevent erroneous discrimination due to induced noise. Further, 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.
It is a schematic block diagram which shows the S valve unit 20. This N
The S valve unit 20 is an automatic valve having two types of functions of a pre-operation type automatic alarm valve and an automatic valve with a secondary pressure adjusting function, and is installed on each floor of the building as described above. In FIG. 4, 21 is an NS valve, the primary side 22 of which is through the primary side pipe 23 and the above-mentioned water supply main pipe 6
Further, the secondary side 24 thereof is connected to the NS head 8 via the secondary side pipe 25 and the branch pipe 7 described above. Normally closed, but fire detector 1 (Fig. 1)
The NS valve 21 which can be opened by the fire signal from the NS monitoring panel 80 and the control signal from the NS monitoring panel 80 includes an electrically operated remote test valve 26 and a manual remote test valve 26 for testing the water passage to the secondary side pipe 25. The test valve 27, the pressure regulating pilot valve 28 for supplying pressurized fire extinguishing water in the primary side pipe 23 to the secondary side pipe 25 after decompressing the pressure to a predetermined pressure by adjusting the opening degree of the NS valve 21, and the NS valve 21. An electrically operated start valve 29 for performing a switching operation to the above-described openable state by normally shutting off the pressure release, and a manual start valve 31 connected in parallel therewith,
An exhaust pressure valve 32 for exhausting the abnormal pressurization of the secondary side pipe 25 is provided.

The NS valve 21 includes a primary side 22 and a secondary side 2
The valve seat 33 that separates the valve 4 from the valve 4 is closed by a valve element 35 that is biased by a spring 34, and a piston 36 and a valve box 37 that are integral with the valve element 35 form a cylinder 38, which is activated. It is connected to the pressure regulating pilot valve 28 via a valve 29 or a manual start valve 31. The start valve 29
Is opened and closed by an electric section 29a such as a motor or an electromagnetic solenoid connected to the terminal block 39 by an electric path indicated by a broken line.

The pressure regulating pilot valve 28 is connected to the secondary side pipe 25.
Secondary pressure is introduced into the operation chamber 28a through the pipe 25a, the primary pressure is taken from the primary side 22 of the NS valve 21 through the strainer (dust collector) 41 and the pipe 22a, and the pressure regulating action of the flam 28b and the spring 28c. By valve body 2
Adjust the opening of 8d, and connect the NS valve 2 through the pipe 22b.
The primary pressure is introduced into the No. 1 cylinder 38.

This pressure regulating pilot valve 28 is used for N
It has a function of opening 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, The primary pressure is gradually introduced into the cylinder 38 via the opening valves 22a and 22b and the open starting valve 29 or the manual starting valve 31, the piston 36 is pushed up (to the left in the drawing), and the interlocking valve element 35 is moved. The fire extinguishing water flows from the primary side 22 to the secondary side 24. On the contrary, when the secondary pressure is higher than the predetermined pressure, the flam 28b
And the valve 28d is closed by the pressure regulating action of the spring 28c,
The inflow amount of the primary pressure is reduced, the pressure in the cylinder 38 is reduced, 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 inflow of fire extinguishing water is reduced, and this operation is repeated until the valve body 3
5 maintains a predetermined opening.

In this way, the opening degree 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, 3.5 kg / cm ² near the secondary side 24. The operation chamber 28a of the pressure regulating pilot valve 28 is connected to the secondary side pipe 25 by a pipe 25a through a small hole 28e in the piston portion of the valve body 28d that is opened for pressure regulation. As a result, the pressure in the secondary side pipe 25 is increased when the pressure regulating pilot valve 28 is opened, so that the pressure is regulated by the pressure regulating pilot valve 28 so that the pressure is constantly maintained at a predetermined pressure.
A small amount of primary pressure is replenished when the pressure drops due to temperature changes. At this time, the NS valve 21 does not open, so the open signal
(Running water signal) does not occur. At the same time, the pressure flows into the back surface through the piston 36, and the sliding of the valve element 35 becomes slow, so that there is an effect that the pressure adjusting action is easily performed.

Therefore, when a fire occurs and the NS head 8 (FIG. 1) is opened, it is possible to immediately discharge water at a predetermined pressure suitable for fire extinguishing activities.
Due to the pressure regulating action of the pressure regulating pilot valve 28, the NS valve 2
1 is opened and the opening degree of the valve element 35 is adjusted, so that the secondary side pipe 25 is supplied with fire extinguishing water of a predetermined pressure suitable for fire extinguishing activities.

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 / closed by an electric part 26a such as a motor or an electromagnetic solenoid connected to the terminal block 39 by an electric path shown by a broken line, and the same amount of fire extinguishing water as one NS head 8 is drained by the opening operation. The size of the opening is set so that The manual test valve 31 has a size of the opening portion so that the same amount of fire extinguishing water as that of at least one of the NS heads 8 is drained by the opening operation thereof.
It is confirmed whether the water pressure in the secondary side pipe 25 at the time of the drainage test is maintained at a predetermined pressure by the pointer of the pressure gauge 43 provided at.

The exhaust pressure valve 32 drains the fire extinguishing water into the drain pipe 42 when the fire extinguishing water introduced into the inside from the secondary side 24 exceeds an allowable pressure (a value slightly higher than a predetermined pressure), and 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, but the primary pressure of the fire extinguishing water in the primary side pipe 23 is measured by the pressure gauge 44 connected to the strainer 41.

The pressure switch 45 for detecting the opening of the NS valve 21 is formed in the valve seat 33 of the NS valve 21 and is a pipe from the running water detection chamber 46 which is closed by the valve body 35 when the valve body 35 is closed. 22c, and a running water signal is supplied to the terminal block 39 by an electric path indicated by a broken line. The pipe 22c is connected to the drain pipe 42 through an orifice 47, and when the NS valve 21 is closed, the fire extinguishing water that operates the pressure switch 45 is gradually discharged. The pressure switch 48 for detecting a large decompression due to damage of the secondary side piping system is the pipe 25a.
And a secondary pressure drop signal is supplied to the terminal block 39 by an electric path indicated by a broken line. Therefore, this pressure switch 4
Numeral 8 detects a pressure drop in the secondary pipe 25 when the NS head 8 is opened for some reason other than a fire, for example, and supplies a secondary pressure drop signal to the terminal block 39. Eight malfunctions can be warned.

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

After that, when the water discharge from the NS head 8 (FIG. 1) continues, this large amount of water discharge is detected by a pressure air tank or the like (not shown), and the pump unit 9 (FIG. 1) is activated to supply water. Main valve 6 (Fig. 1) to NS valve 2
The high-pressure fire extinguishing water is replenished to the primary side piping 23 of 1. As described above, since the secondary side pipe 25 to the NS head 8 and the like is filled with the fire extinguishing water of a predetermined pressure, the fire extinguishing water is released at the same time when the NS head 8 is opened, and there is no delay in the fire extinguishing operation.

FIG. 5 shows N used in the first embodiment of the present invention.
It is a wiring diagram which shows a part of S repeater 50 by a block diagram. The NS repeater 50 is a transmission terminal of the NS monitoring board 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 monitoring board 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 a coded information signal to the NS monitoring panel 80 together with its own address, and when a coded control signal is transmitted to and received from the NS monitoring panel 80, the address is detected. After determining whether the command is for itself, the control signal is analyzed and the NS valve unit 20 is controlled (started and returned).

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

The transmission circuit 52 in the NS repeater 50 is I
It is connected to the F13 and transmits / receives to / from the NS monitoring board 80 by serial transmission between signal lines S + and S− which will be described later, and is composed of an A / D converter, a D / A converter and the like not shown. The address setting unit 53 is a unit that individually sets an address for distinguishing each NS relay 50 when transmitting and receiving with the NS monitoring board 80, and 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 24V from power supply lines PVC and PV described later into a predetermined voltage, for example, 20V, and mainly supplies it to a relay and a response circuit described later. The constant voltage circuit 55 converts the voltage extracted between the signal lines S + and S− into a constant voltage of 3V and supplies it to the control circuit 51 as its power supply voltage. The voltage monitoring circuit 56 monitors the voltage of 20V supplied from the power supply circuit 54, and the power supply lines PVC, P
When a voltage drop due to a poor V connection or the like is detected, the MPU 1 is notified via the IF 12.

The relay O is the NS valve unit 2 of FIG.
The opening valve 29 is controlled to open when the voltage is 0, and the voltage from the power line PVC is switched from contact point o1 to contact point k1 to be described later by switching the contact points o1 and o2 when excited.
-Terminal B and B-Contact 29d described later-Electric part 29a-
Diode 29c-terminal b and low contact k2-contact o2
-Starting valve 29 is opened as it is applied via ground PV. The contact point 29d is a limit switch, which is mechanically switched when the electric part 29a is operated to the full open position to prevent unnecessary voltage application. However, when the relay O is demagnetized, the state shown in FIGS. 5 and 6 is restored, and the power supply voltage is applied in the opposite direction. Therefore, the start valve 29 is closed, and when the relay O is fully opened, as shown in FIG. Then, the reverse voltage is prevented from being applied. These contacts 29d and 29e are switched at the time of fully opening or fully closing, but are switched to the opposite by a little movement. 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 depending on the state.

The response circuit 57 is a circuit for detecting ON / OFF of contacts by the operation of each part of the NS valve unit 20, such as full opening and closing of the starting valve 29 and full opening and closing of the remote test valve 26, by a photocoupler or the like. Is. For example, when the starting valve 29 is fully opened, the PVC-o1-k1-a and the a-contact 29
d (fully open) -terminal C and response circuit 57-ground PV
Accordingly, the response circuit 57 detects the full opening of the starting valve 29. The relay K has a self-holding function, and when it is excited by the voltage of the backup power supply line PKC, which will be described later, when the NS system is in the backup operation mode due to the operation of the secondary pressure lowering pressure switch 48. Contact point k1
And k2 are switched so that the start valve 29 is opened by PKC-k1-a and a-29d-29a-29c-b and ro-k2-ground PK.

FIG. 7 shows N used in the first embodiment of the present invention.
6 is a block diagram showing an S monitoring board 80. FIG. This NS monitoring panel 80 controls the startup of the NS valve unit 20 via the NS relay 50 in response to a fire signal from the automatic fire alarm system, displays an alarm when the NS head 8 is opened, and informs the automatic fire alarm system. The signal processing of the water discharge signal of is performed. For the auxiliary sprinkler (not shown), an alarm display is made by ANDing the signal for opening the fire hydrant valve and the signal for the main alarm valve (not shown) in the pump unit 9 (FIG. 1). NS monitoring panel 80
Has a status monitoring function and constantly monitors each part of the system, and when the localization is removed by opening and closing the NS valve 21 during maintenance and inspection, the abnormal status part is displayed on the panel and an alarm is issued. The remote automatic test function of the NS monitoring board 80 sequentially performs a remote operation test for all NS valves 21 based on the programmed sequence, checks the operation function, and displays the cause when there is an abnormality. , Print out and issue a test error alarm. In addition, automatic disconnection monitoring of the electrical lines of the NS monitoring system can be performed, and in addition, operation tests and standby power supply tests can be easily performed. The NS monitoring panel 80 has an NS independent operation mode in addition to the normal self-fire alarm interlocking mode so that the NS system can function even during an automatic fire alarm facility failure or test inspection. When operated alone, water discharge can be started by lowering the secondary pressure of the NS valve. In addition, when the NS system has a failure, it has a backup operation mode to prevent the function of the fire extinguishing equipment from being downed, and the backup operation mode can ensure a minimum water discharge function.

The NS monitoring board 80 is provided with a control circuit 81, and this control circuit 81 is a microprocessor M which is a control center.
PU2, memory ROM2 in which the program is stored,
It has a memory RAM 2 in which signals and data are stored, and interfaces IF21, IF22 and IF23 with each part of the NS monitoring board 80.

The transmission circuit 82 in the NS monitoring board 80 is I
F22 is connected to each of 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 device 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 AC100V into a constant voltage of DC24V, for example, and supplies it to a required location, and supplies power lines PVC to each NS relay 50 and an input IF unit and an output IF unit described later.
Power supply for operation is supplied by PV, and a standby power supply 84a for commercial power supply down is provided. The display control circuit 86 is connected to the IF 21, and the liquid crystal display LC on the board surface is displayed.
Display of D, lighting of various light emitting diodes LED, and input monitoring of the switch SW are performed. The backup power supply circuit 87 is set to A by the backup input from the switch SW.
This is a circuit that converts a commercial power supply voltage of C100V into a constant voltage of DC24V, for example, and supplies backup power to each NS repeater 50 through 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 have N
It is a unit for transmitting and receiving parallel signals (on / off signals) between the S monitoring board 80 and the fire receiver 4. Each unit has a microcomputer (not shown) and transmits / receives input / output information to / from the transmission circuit 82 by serial transmission. Therefore, each unit has an address equivalent to that of the NS repeater 50, and transmits / receives a signal in the same manner as the transmission circuit 82 transmits / receives a signal to / from each NS repeater 50.

FIG. 8 shows the input IF in the NS monitoring board 80 of FIG.
It is a detailed block diagram of the unit 90. This input IF
The unit 90 is a unit for the NS monitoring board 80 to send and receive signals to and from the fire receiver 4.
Parallel signals are input / output so that the type of is not specified.

The input IF unit 90 includes a control circuit 91, which is a control center of the microprocessor MPU3 and a memory RO in which a program is stored.
M3, memory RAM3 in which signals and data are stored, 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 / receives to / from the transmission circuit 82 of the NS monitoring board 80 by serial transmission between the signal lines S + and S−, and is configured by an A / D converter, a D / A converter or the like not shown. Has been done. The address setting unit 93 is NS
Each input I when transmitting / receiving with the transmission circuit 82 of the monitoring board 80
This is a part for individually setting an address for distinguishing the F unit 90, and the address is set by, for example, a dip switch (not shown). The power supply circuit 94 converts a power supply voltage of, for example, DC 24V from the power supply lines PVC, PV into a predetermined voltage, for example, 20V, and mainly supplies it to a response circuit described later. The constant voltage circuit 55 converts the voltage extracted between the signal lines S + and S− into a constant voltage of 3V, and the control circuit 9
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 by a phototransistor or the like (not shown). One input IF unit 90 is provided with, for example, four response circuits 97, and each response circuit 9
For example, four signal lines are connected to 7, and ON / OFF of each of the four signal lines can be detected, and ON / OFF of 16 signal lines can be input by one unit.

FIG. 9 shows the output IF in the NS monitoring board 80 of FIG.
3 is a detailed block diagram of the unit 100. FIG. This output I
The F unit 100 is also a unit for the NS monitoring board 80 to send and receive signals to and from the fire receiver 4, and includes a control circuit 101. The control circuit 101 includes an MPU4, ROM4, RAM4, IF4 similar to that shown in FIG.
1, IF42 and IF43.

Transmission circuit 1 in the output IF unit 100
Reference numeral 02 is connected to the IF 42, and transmits / receives to / from the transmission circuit 82 of the NS monitoring board 80 by serial transmission between the signal lines S + and S−, and includes an A / D converter and a D / D converter (not shown).
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 / receiving with the transmission circuit 82 of the NS monitoring board 80. For example, the address is set by a dip switch (not shown). Power supply circuit 1
Reference numeral 04 converts a power supply voltage of, for example, DC 24V from the power supply lines PVC, PV into a predetermined voltage, for example, 20V, and supplies it mainly to an output circuit described later. The constant voltage circuit 105 converts the voltage extracted between the signal lines S + and S− into a constant voltage of 3V and supplies it to the control circuit 101 as its power supply voltage. The output circuit 108 uses signal lines M1 to M16 to the fire receiver 4.
Is a circuit for controlling ON / OFF between each of the above and the common line C by a phototransistor, a relay, etc. not shown. One output IF unit 100 is provided with four output circuits 108, four signal lines are connected to each output circuit 108, ON / OFF of each of the four signal lines is detected, and one output unit is detected by one unit. It is possible to control ON / OFF of 16 signal lines.

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 when a failure occurs in the normal monitoring mode. (1) Normal monitoring mode When a fire occurs in step S1, the fire detector 1 that detects smoke, heat, etc. of the automatic fire alarm facility operates in step S2, or the person who discovers the fire pushes the transmitter push button. By pressing, the fire receiver 4 receives a fire signal via the fire repeater 2 (not shown in FIG. 10). Then, the fire receiver 4 performs a fire notification operation (fire display) in step S3, determines the fire occurrence position (process by floor), and outputs the notification to the NS monitoring panel 80.

The NS monitoring board 80 displays the fire input in step S4 and sends the NS valve activation signal to the NS relay 50 corresponding to the fire occurrence position. Upon receiving the start signal, the NS repeater 50 opens the start valve 29 in the NS valve unit 20 in step S5, and the start valve 2
When 9 is fully opened and is in the standby state, the NS valve unit 2
0 is the start valve 2 to the NS monitoring panel 80 via the NS repeater 50
The release signal 9 is transmitted. Upon receiving the opening signal of the start valve 29, the NS monitoring board 80 receives the start valve 2 of the floor in step S6.
Indicates that 9 is open.

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

Thereafter, in step S12, the NS head 8 is
Discharges pressure-controlled fire extinguishing water, and therefore step S13
When the pressure of the pressure air tank (not shown) is lowered and the pressure switch (not shown) is activated at step S14, the pump unit 9 is automatically started at step S14. This is N
The NS monitoring board 80 in step S15 by the S repeater 50
Then, it is displayed on the fire receiver 4 in step S16. After that, the NS valve 21 supplies the regulated fire extinguishing water in step S17, and the fire is extinguished in step S18. As a result, the NS monitoring board 80 sends a stop signal for restoring the NS valve 21 and stopping water discharge to the NS valve unit 20 via the NS relay 50 in step S19, and closes the start valve 29 in step S20. To stop the water discharge. In addition, the NS monitoring board 80 restores the display / warning of the fire receiver 4 in step S21.

(2) Operation at the time of failure in normal monitoring mode When the NS repeater 50 detects the open / closed state of valves around the NS valve and the drop of the secondary pressure in step S31, it outputs a signal indicating the abnormal state to the NS relay. It is sent to the monitoring board 80. The NS monitoring board 80 displays / warns the abnormal state according to the content of the signal received in step S32, and outputs the alarm to the fire receiver 4. The fire receiver 4 is NS in step S33.
The same display and alarm as the monitor panel 80 are given. Further, in the case of the failure of the NS system itself, the display / warning is performed in steps S34 and S35 as in steps S32 and S33. Step S
If there is a failure in the automatic fire alarm system (self-report) at 36,
The fire receiver 4 notifies the NS monitoring panel 80 of this, and the NS monitoring panel 80 automatically switches the operating mode or displays the independent operating mode in step S37.

(3) Single operation mode FIG. 11 is a diagram showing an operation flow in the single operation mode. This single operation mode is a mode used when the fire receiver 4 is in the transfer stop state for inspection or the like. A fire occurs in step S41, and the heat causes the NS head 8 to open in step S42.
When the pressure switch 48 for lowering the secondary pressure detects that the pressure in the secondary pipe 25 of the NS valve 21 has dropped at 3, the NS relay 50 sends a secondary pressure drop signal to the NS monitoring panel 80.
Send to. The NS monitoring board 80 recognizes the received secondary pressure drop signal as a fire signal, displays a fire 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 determines in step S45 that the activation valve 2 in the NS valve unit 20 has been activated.
When the start valve 29 is fully opened and the start valve 29 is fully opened and is in a standby state, the NS valve unit 20 sends an open signal of the start valve 29 to the NS monitoring board 80 via the NS relay 50. In response to the opening signal of the start valve 29, the NS monitoring board 80 displays that the start valve 29 of the floor is open in step S46.

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

Thereafter, in step S49, the NS head 8 is
Discharges pressure-controlled fire extinguishing water, and therefore step S50
When the pressure of the pressure air tank (not shown) is lowered and the pressure switch (not shown) is activated at step S51, the pump unit 9 is automatically started at step S51. This is N
The NS monitoring board 80 in step S52 by the S repeater 50
Is displayed in. 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 the backup operation to the backup power supply circuit 87, the backup power supply lines PKC, PK
Is turned on, and the control function of the NS monitoring board 80 is stopped in step S60.

A fire occurred in step S61, the heat of the fire opened the NS head 8 in step S62, and the pressure in the secondary pipe 25 of the NS valve 21 decreased in step S63. When the pressure reduction pressure switch 48 detects, the relay K (emergency operation circuit) in the NS relay 50 is excited, and the voltage of the backup power supply line PKC opens the start valve 29 in the NS valve unit 20 in step S64. 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 pressure air tank (not shown) is reduced in step S66. If a pressure switch (not shown) is activated,
At 67, the pump unit 9 is automatically started. afterwards,
In step S69, the NS valve 21 supplies the regulated fire extinguishing water, and the fire is extinguished in step S69.

Next, the system maintenance management of the first embodiment of the present invention will be described. (1) Remote test sequence Although static system abnormalities are detected by status monitoring, dynamic reliability can be confirmed by conducting remote tests. In this test, running water equivalent to that during operation of the NS head can be remotely controlled to 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 the terminal test valve provided in the conventional sprinkler fire extinguishing equipment, and by operating the test start button on the NS monitoring panel 80,
A test according to a predetermined programmed sequence is performed on the NS valve unit 20 provided on each floor, and N
The control functions of the S valve unit 20 and the NS monitoring panel 80 are confirmed step by step.

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

After the start valve 29 is fully opened (or before the full open signal), after checking that the running water signal generated in step S79 is returned within 3 minutes, the NS monitoring panel 8
0 displays the opening of the NS valve 21 in step S80 and sends a closing signal of the remote test valve 26 to the remote test valve 26 via the NS relay 50. After checking that the remote test valve 26 is closed in step S81 and the fully closed signal is returned within 20 seconds, the NS monitoring board 80 displays the close of the remote test valve 26 in step S82. In step S83 during this period, the NS monitoring board 80 sets the start valve 29
Is sent to the start valve 29 via the NS relay 50. After checking that the start valve 29 is closed in step S84 and a full-close signal is returned within 20 seconds, N
The S monitoring board 80 displays the closing of the starting valve 29 in step S85.

Then, in step S86, the NS valve 2
The running water signal is stopped by closing 1 and this is displayed in step S87, and the secondary pressure drop signal is restored in step S88.
It is displayed at 9, and after confirming that the above response falls within 10 seconds, it is displayed at step S90 that the remote test is completed. When an abnormality occurs, the NS valve 21 is restored and the number of the abnormal NS valve 21 and the abnormal step are displayed. When the end switch is operated or a fire signal is input during the test, the NS valve 21 is restored to return to normal operation.

(2) Remote automatic test The above-mentioned remote test is performed with the address N (younger)
The process is sequentially performed from the S valve 21. After the test, if normal, the normal display is shown and the normal monitoring mode is returned. If there is an abnormality during the test, the abnormal place and the cause of the abnormality are printed by a built-in printer (not shown), and after the end, the normal monitoring mode is returned to. (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 alarm function of the NS monitoring board 80 operates normally. Start by operating the operation test switch on the control panel (not shown). (5) Standby power supply test The standby power supplies 84a and 87a in the NS monitoring board 80 are automatically tested for abnormalities.

In the NS system according to the first embodiment, the operated fire detector 1 sends a fire signal to the fire receiver 4, and the fire receiver 4 discriminates the fire occurrence floor from the fire signal and detects the NS monitor panel 80. The NS monitoring panel 80 sends a start command to the NS repeater 20 on the relevant floor according to the information, but the fire detector sends the detected value and the fire receiver discriminates the fire. In addition, the fire receiver 4 determines the fire occurrence floor and transfers it to the NS monitoring panel 80. However, the fire receiver 4 sends out fire information such as the address of the fire detector and sends the information to the NS. You may make it discriminate the fire-occurrence floor on the monitoring board. Therefore, according to the present invention,
Fire on the floor where the NS head is installed is transferred to the NS monitoring panel via the fire receiver by the signal from the fire detector on the relevant floor, and the NS monitoring panel sends a start signal to the NS relay on the relevant floor. Anything will do. Further, in the district valve device, in the above embodiment, the NS is controlled by the opening control of the start valve 29.
The valve 21 is in a so-called pressurizable open state, but in the present invention, it is only necessary to be able to release water when the head is opened. It may be an open type or an electric type that is directly opened.

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

Next, the sprinkler fire extinguishing equipment (hereinafter referred to as the SP system) according to the second embodiment of the present invention will be described. In this SP system, a fire occurs, for example, on the second floor 2F, and the heat causes the SP 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 shown in the schematic diagram of FIG. 15 are shown.
Pressure drops. And the primary side 2 of the automatic alarm valve 20A
2 due to the differential pressure generated between the 2 and the secondary side 24
9a rotates about the arm shaft 49b in the valve opening direction (the direction of the arrow). The valve element 35 provided on the lower surface of the operating valve 49a is separated from the valve seat 33. As a result, fire extinguishing water flows from the water supply main 6 (FIG. 14) through the primary side 22, and the valve seat 3
Part of the fire-extinguishing water passing through the opening of No. 3 reaches the pressure switch 45 via the running water detection chamber 46 and the pipe 22c. Therefore, this pressure switch 45 operates to send a water flow signal to the second floor 2F.
SP repeater 50 and common signal line 12 provided in
Since it is sent to the SP monitoring board 80A via the, the SP monitoring board 80A displays a water discharge warning on the board. Also, S
When the P head 8A starts discharging water and the pressure in the pressure air tank (not shown) drops, the pump unit 9 is triggered by the signal.
Is automatically started. Reference numeral 49c is 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 relay 5 by an electric path.
It is connected to 0A.

Such a series of monitoring and control is performed by the SP monitoring board 80A installed in the disaster prevention center. Each automatic alarm valve 20A is provided with a corresponding SP repeater 50A, and each S
Information signals are transmitted and received between the P repeater 50A and the SP monitoring board 80A by serial transmission. SP monitoring panel 80A
Transmits / receives a fire signal and a water discharge signal to / from the fire receiver 4 of the automatic fire alarm facility, and constitutes a disaster prevention facility integrated with the automatic fire alarm facility. The SP repeater 50A and the SP monitor board 80A dedicated to the SP system are installed as a signal system independent of the signal system of the automatic fire alarm facility. The various information signals are collected from the corresponding automatic alarm valve 20A to the SP repeater 50A arranged on each floor, coded here, and then transmitted to the SP monitor panel 80A by the polling / selecting method. The SP monitor panel 80A has an alarm buzzer, an LCD kanji character display section, an operation section, and has a built-in printer.

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

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

Transmission circuit 52A in SP repeater 50A
Are connected to the IF 53 and are connected to signal lines SA + and SA which will be described later.
-The communication between the SP monitoring board 80A and the device is performed by serial transmission, and is configured by an A / D converter, a D / A converter or the like (not shown). The address setting unit 53A displays S
Each SP repeater 50A when transmitting / receiving with the P monitoring board 80A
The address is set individually by a dip switch (not shown). The power supply circuit 54A has a power supply line P described later.
The power supply voltage of, for example, DC 24V from VCA and PVA is converted into a predetermined voltage, for example, 20V, and is mainly supplied to a response circuit described later. The constant voltage circuit 55A includes signal lines SA + and SA
-The voltage extracted from between is converted into a constant voltage of 3 V, for example, and is supplied to the control circuit 51A as its power supply voltage. The voltage monitoring circuit 56A is supplied from the power supply circuit 54A.
When the voltage of 0V is monitored and a voltage drop due to poor connection of the power supply lines PVCA and PVA is detected, MP is transmitted via IF52.
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 when energized, the contacts u1 and u2 are switched over so that the voltage from the power supply line PVCA becomes a contact. u1-terminal B and A-contact 26d described later-motor unit 26a-diode 2
6c-terminal B-A and B-contact U2-ground PVA, so that the remote test valve 26 is opened. The contact 26d is a limit switch, which is mechanically switched when the electric part 26a is operated to the full open, thereby preventing unnecessary voltage application. However, when the relay U is demagnetized, the state shown in FIGS. 16 and 17 is restored and the power supply voltage is applied in the opposite direction, so the remote test valve 26 is closed,
Similar to the fully open state, the fully closed state results in the state of FIG. 17, preventing the reverse voltage from being applied. These contacts 29d and 29e are switched at the time of fully opening or fully closing, but are switched to the opposite by a little movement.

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

FIG. 18 is a block diagram showing an SP monitor board 80A used in the second embodiment of the present invention. The SP monitoring board 80A displays an alarm by opening the SP head 8A and performs a process of transferring a water discharge signal to the automatic fire alarm facility. For the auxiliary sprinkler (not shown), an alarm is displayed by a fire hydrant valve open signal. SP monitoring panel 80A
Has a status monitoring function and constantly monitors each part of the system, and when the localization is removed by opening and closing the automatic alarm valve 20A and the main valve 49c (Fig. 15) during maintenance and inspection, the status is abnormal on the panel. Display the location and give an alarm. The remote automatic test function of the SP monitoring board 80A is based on the programmed sequence.
A remote operation test is sequentially performed on the fully automatic alarm valve 20A, the operation function is checked, and if there is an abnormality, the cause is displayed and printed out, and then a test abnormality alarm is issued. In addition, automatic disconnection monitoring of the SP monitoring system electric circuit can be performed, and in addition, an operation test and a standby power supply test can be easily performed.

The SP monitor board 80A includes a control circuit 81A, which is a control center of the microprocessor MPU6 and a memory R in which a program is stored.
OM6, memory RAM6, S for storing signals and data
Interface IF 61 with each part of the P monitoring board 80A,
It has IF62 and IF63.

Transmission circuit 82A in SP monitor panel 80A
Is connected to the IF 62 and transmits / receives to / from each SP relay 50A by serial transmission between the signal lines SA + and SA−, and is controlled by a one-chip microcomputer (not shown). The alarm device 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 of the above into a constant voltage of, for example, DC 24 V and supplying it to a required location.
And the input IF unit 9 described above with reference to FIGS.
0 and output IF unit 100 to power supply lines PVCA, PV
The power supply for operation is supplied by A, and the backup power supply 84Aa is provided when the commercial power supply is down. The display control circuit 86A is connected to the IF 61 and is used for the liquid crystal display L on the board.
The CD is displayed, various light emitting diodes LED are turned on, and the input of the switch SW is monitored.

Next, the system maintenance management of the second embodiment of the present invention will be described. (1) Remote test sequence Although static system abnormalities are detected by status monitoring, dynamic reliability can be confirmed by conducting remote tests. In this test, running water equivalent to that during operation of the SP head can be remotely controlled to automatically test the alarm function of the automatic alarm valve 20A and confirm the function. The automatic alarm valve 20A has a built-in remote test function corresponding to the terminal test valve provided in the conventional sprinkler fire extinguishing equipment, and is automatically installed on each floor by operating the test start button on the SP monitor panel 80A. A test according to a predetermined programmed sequence is executed on the alarm valve 20A, 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 a remote test input is made to the SP monitor panel 80A by operating the switch SW of A, the SP monitor panel 80A will execute step S102.
The remote test and remote test address are displayed at and the open signal of the remote test valve 26 is sent to the remote test valve 26 in the automatic alarm valve 20A through the SP relay 50A. In step S103, the remote test valve 26 is opened, and after checking whether a full open signal is returned within 20 seconds, SP
The monitoring board 80A displays the opening of the remote test valve 26 in step S104. After fully opening the remote test valve 26 (or before the fully open signal), after checking that the running water signal generated in step S105 is returned within 3 minutes, the SP monitoring panel 80A determines in step S106 the automatic alarm valve 20A. The open signal of the remote test valve 26 and SP
It delivers to the remote test valve 26 via the relay 50A. In step S107, the remote test valve 26 is closed, and after checking that the fully closed signal is returned within 20 seconds, the SP monitor panel 80A displays the close of the remote test valve 26 in step S108.

Thereafter, in step S109, the automatic warning valve 20A is closed to stop the running water signal, and this is displayed in step S110.
After confirming that it falls within 0 seconds, step S111
Indicates that the remote test is completed. When there is 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 above remote test is sequentially performed from the younger automatic alarm valve 26 having the specified address. After the test, if normal, the normal display is shown and the normal monitoring mode is returned. If there is an abnormality during the test, the abnormal place and the cause of the abnormality are printed by a built-in printer (not shown), and after the end, the normal monitoring mode is returned to. (3) Automatic disconnection monitoring The electric circuit between the SP monitoring 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 alarm function of the SP monitor panel 80A operate normally. Start by operating the operation test switch on the control panel (not shown). (5) Standby power supply test The SP power supply 84Aa in the SP monitor panel 80A is automatically tested for abnormalities.

[0080]

According to the first aspect of the present invention, there is provided a water supply main extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main and branching into each of the plurality of floors. , A large number of sprinkler heads provided in each branch pipe,
District valve device provided between the main water supply pipe and each branch pipe, for supplying the extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device, the state of the corresponding district valve device A sprinkler repeater that detects and controls the corresponding regional valve device, a sprinkler monitoring panel connected to each sprinkler repeater via a common signal line, and a large number of fire detectors provided on each floor, A fire detector and a fire receiver electrically connected to the sprinkler monitoring panel are provided, and the fire detector sends a fire signal to the fire receiver when detecting the occurrence of a fire, and the fire receiver is A signal based on the fire signal is sent to the sprinkler monitoring board, and the sprinkler monitoring board sends a start signal to a sprinkler repeater on the fire occurrence floor based on the fire signal. Since the sprinkler repeater controls the opening of the start valve in the corresponding district valve device based on the start signal, the start signal for controlling the opening of the start valve in the district valve device on the floor where the fire is detected is surely made. The effect that it can be sent to.

According to a second aspect of the present invention, there is provided a water supply main extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main and branching into each of the plurality of floors.
A large number of sprinkler heads provided in each branch pipe, a regional valve device provided between the main water supply pipe and each branch pipe to supply fire extinguishing water to the large number of sprinkler heads, each regional valve device and electric Sprinkler repeaters connected to each other to detect the state of the corresponding regional valve device and control the corresponding regional valve device, and a sprinkler monitoring panel connected via a signal line common to each sprinkler relay device, It is equipped with a large number of fire detectors provided on each floor and a fire receiver electrically connected to the fire detectors and the sprinkler monitoring board, and the sprinkler monitoring board receives a fire signal from the fire receiver. The sprinkler repeater 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 by detecting that the sprinkler head is not opened. , A secondary pressure drop signal is sent to the sprinkler monitor board, and the sprinkler monitor board sends a start signal to the sending sprinkler repeater based on the secondary pressure drop signal, and the sprinkler repeater starts the start-up signal. Since the opening valve in the corresponding regional valve device is controlled to be opened based on the signal, there is an effect that the starting signal can be sent out even if the fire receiver cannot transmit the fire signal.

According to the third aspect of the present invention, there is provided a water supply main extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main and branching into each of the plurality of floors.
A large number of sprinkler heads provided in each branch pipe, a regional valve device provided between the main water supply pipe and each branch pipe to supply fire extinguishing water to the large number of sprinkler heads, each regional valve device and electric Sprinkler repeaters connected to each other to detect the state of the corresponding regional valve device and control the corresponding regional valve device, and a sprinkler monitoring panel connected via a signal line common to each sprinkler relay device, It is equipped with a large number of fire detectors provided on each floor and a fire receiver electrically connected to the fire detectors and the sprinkler monitoring board, and the sprinkler head is opened by the heat of the fire to respond to the fire. 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 board, and the sprinkler monitoring board is When there is a fire assertion input based on the secondary pressure drop signal, it sends a start signal to the sprinkler repeater, and the sprinkler repeater opens the start valve in the corresponding district valve device based on the start signal. Since the control is performed, even if the signal from the automatic fire alarm system is delayed, the fire extinguishing activity can be performed by the district valve device status signal detected by the sprinkler repeater.

According to a fourth aspect of the present invention, there is provided a water supply main extending through a plurality of floors of a building such as a building, and a branch pipe branching from the water supply main and branching into each of the plurality of floors.
A large number of sprinkler heads provided in each branch pipe, a regional valve device provided between the main water supply pipe and each branch pipe to supply fire extinguishing water to the large number of sprinkler heads, each regional valve device and electric Sprinkler repeaters connected to each other to detect the state of the corresponding regional valve device and control the corresponding regional valve device, and a sprinkler monitoring panel connected via a signal line common to each sprinkler relay device, It is equipped with a large number of fire detectors provided on each floor and a fire receiver electrically connected to the fire detectors and the sprinkler monitoring board, and the sprinkler repeater allows the sprinkler monitoring board to send and receive signals. When the sprinkler head is opened by the heat of the fire and the secondary pressure of the corresponding district valve device is reduced, 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.

[Brief description of drawings]

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

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

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

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 showing a partial block diagram of the NS relay used in the first embodiment of the present invention.

6 is a wiring diagram showing an electrical-related portion of the NS valve unit of FIG.

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

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

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

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

FIG. 11 is a diagram showing an operation flow in a single 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 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 showing a partial 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.

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

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

[Explanation of symbols]

 1 Fire detector 2 Fire relay 4 Fire receiver B1F-4F Building floor 6 Water supply main 7 Branch pipe 8 NS head 8A SP head 12 Common signal line 20 NS valve unit 20A Automatic alarm valve 50 NS relay 50A SP Repeater 80 NS monitoring panel 80 ASP monitoring panel

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location A62C 37/50 8702-2E

Claims (4)

[Claims] 1. A water supply main extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main branching into each of the plurality of floors, and a branch pipe provided on each branch pipe. A plurality of sprinkler heads, district valve devices provided between the main water supply pipe and each branch pipe and supplying fire extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device, and corresponding A sprinkler repeater that detects the status of the district valve device and controls the corresponding district valve device, a sprinkler monitoring panel connected to each sprinkler relay via a common signal line, and a number of sprinkler monitors installed on each floor. A fire detector and a fire receiver electrically connected to the fire detector and the sprinkler monitoring panel are provided, and the fire detector sends a fire signal to the fire receiver when a fire is detected. Then, the fire receiver sends a signal based on the fire signal to the sprinkler monitoring board, the sprinkler monitoring board sends a start signal to a sprinkler repeater on the fire occurrence floor based on the fire signal, The sprinkler fire extinguishing equipment is characterized in that the sprinkler repeater controls the opening of the starting valve in the corresponding regional valve device based on the starting signal. 2. A water supply main extending through a plurality of floors of a building such as a building, branch pipes branching from the water supply main for each of the plurality of floors, and branch pipes provided on the respective branch pipes. A plurality of sprinkler heads, district valve devices provided between the main water supply pipe and each branch pipe and supplying fire extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device, and corresponding A sprinkler repeater that detects the status of the district valve device and controls the corresponding district valve device, a sprinkler monitoring panel connected to each sprinkler relay via a common signal line, and a number of sprinkler monitors installed on each floor. A fire detector, and a fire receiver electrically connected to the fire detector and the sprinkler monitoring panel, wherein the sprinkler monitoring panel cannot receive a fire signal from the fire receiver. When the sprinkler head is opened by the heat of the fire and the secondary pressure of the corresponding district valve device decreases, the sprinkler repeater sends a secondary pressure drop signal to the sprinkler monitoring panel. Sending out, the sprinkler monitoring board sends a start signal to its sending sprinkler repeater based on the secondary pressure drop signal, and this sprinkler repeater is based on the start signal, in the corresponding district valve device. Sprinkler fire extinguishing equipment, characterized by controlling the opening of the start valve. 3. A water supply main extending through a plurality of floors of a building such as a building, a branch pipe branching from the water supply main branching into each of the plurality of floors, and a branch pipe provided in each branch pipe. A plurality of sprinkler heads, district valve devices provided between the main water supply pipe and each branch pipe and supplying fire extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device, and corresponding A sprinkler repeater that detects the status of the district valve device and controls the corresponding district valve device, a sprinkler monitoring panel connected to each sprinkler relay via a common signal line, and a number of sprinkler monitors installed on each floor. A fire detector and a fire receiver electrically connected to the fire detector and the sprinkler monitoring panel are provided, and the sprinkler head is opened by the heat of the fire and the corresponding regional valve device is installed. Based on the decrease of the secondary pressure of the, the sprinkler repeater sends a secondary pressure decrease signal to the sprinkler monitoring board, and the sprinkler monitoring board has a fire assertion input based on the secondary pressure decrease signal. In this case, a start signal is sent to the sprinkler repeater, and the sprinkler repeater controls opening of the start valve in the corresponding regional valve device based on the start signal. 4. A water supply main extending through a plurality of floors of a building such as a building, branch pipes branching from the water supply main for each of the plurality of floors, and branch pipes provided on the respective branch pipes. A plurality of sprinkler heads, district valve devices provided between the main water supply pipe and each branch pipe and supplying fire extinguishing water to the plurality of sprinkler heads, and electrically connected to each district valve device, and corresponding A sprinkler repeater that detects the status of the district valve device and controls the corresponding district valve device, a sprinkler monitoring panel connected to each sprinkler relay via a common signal line, and a number of sprinkler monitors installed on each floor. A fire detector and a fire receiver electrically connected to the fire detector and the sprinkler monitoring board are provided, and the sprinkler repeater is configured to prevent the sprinkler monitoring board from transmitting and receiving signals. When the sprinkler head is opened by the heat of the fire and the secondary pressure of the corresponding district valve device is lowered, the sprinkler repeater is The sprinkler fire extinguishing equipment is characterized by controlling the opening valve of the.