JP3307480B2 - 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 for a plurality of buildings such as buildings, and more particularly to a sprinkler extinguishing system equipped with a dedicated sprinkler repeater and a 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 equipment does not have a dedicated sprinkler repeater or monitoring panel, the state of the regional valve device and its state change are remotely monitored at the disaster prevention center. There was a problem that it was not possible. Therefore, the present invention provides, in addition to the status monitoring and control (or only monitoring) of the district valve device by the sprinkler repeater, and the transmission and reception of information to and from the sprinkler repeater by the monitoring panel, the present invention also provides An object of the present invention is to provide a sprinkler fire extinguishing system that can perform monitoring and control (or only monitoring).

[0004]

The invention according to claim 1 is
A sprinkler fire extinguishing system used in combination with fire detection means, comprising a water main extending through a plurality of floors of each of a plurality of buildings such as buildings, and branching from the water main to each of the plurality of floors. And a plurality of sprinkler heads provided in the branch pipes of each floor, and a district valve provided between the water supply main pipe and each branch pipe to supply fire extinguishing water to the plurality of sprinkler heads. and device, are electrically connected to each and each district valve device, a sprinkler repeater for controlling said each district valve device with monitoring the state, the common signal line and all the scan Purinkura repeaters for each building It is connected via a monitoring panel for each building to transmit and receive the information by each sprinkler repeater and coded signal is connected through all the monitoring panel and the common signal line, the monitoring panel of the respective building An operating unit for receiving an operation input for viewing and controlling, and a display unit for displaying various kinds of information, comprising a monitoring panel for each building and a general monitoring panel for transmitting and receiving information based on coded signals. It is.

According to a fourth aspect of the present invention, there is provided a water supply main pipe extending through a plurality of floors of each of a plurality of buildings such as buildings, 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 the branch pipes of each floor; 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 to the valve devices and monitor their status, and each building
Are connected via a common signal line and all the sprinkler repeaters for each said each sprinkler repeater and coded signal
And monitoring panel for each building to transmit and receive Ru good information, it is connected through all the monitoring panel and the common signal line, the operation unit for accepting an operation input to monitor and control the monitoring panel for each building And a display section for displaying various types of information, and includes a monitoring panel for each building and a general monitoring panel for transmitting and receiving information based on coded signals.

[0006]

According to the first aspect of the present invention, a sprinkler repeater provided for each floor of each building of the building monitors the state of the corresponding district valve device and controls the corresponding district valve device,
A monitoring panel provided for each building receives a monitoring signal indicating the state of the corresponding district valve device from the corresponding sprinkler repeater, and from the fire detection means via a fire receiver or directly from the fire detection means. And transmitting a control signal to the corresponding sprinkler repeater based on the received fire signal, and a general monitoring panel connected to all monitoring panels monitors and controls each monitoring panel.

[0007] In the invention of claim 4, a sprinkler repeater provided for each floor of each building of the building monitors the state of the corresponding district valve device, and a monitoring panel provided for each building has a corresponding monitoring panel. A monitoring signal indicating the state of the valve device is received from the corresponding sprinkler repeater, and a comprehensive monitoring panel connected to all the monitoring panels monitors and controls each monitoring panel.

[0008]

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. FIG. 1 is a schematic configuration diagram showing a main part of an embodiment of a sprinkler fire extinguishing system according to the present invention. In FIG. 1, a, b, and c denote a plurality of buildings such as buildings, for example, a building, b building, and c building, respectively. Reference numeral 1 denotes a fire detecting means, for example, a fire detector, which is provided in large numbers (only one is shown in FIG. 1) for each floor of each building.
a1 and 1a2 represent fire detectors provided on the first and second floors of building a, respectively, and 1b3 and 1c4 represent b, respectively.
Represents a fire detector installed on the third floor of the building and the fourth floor of the building c.
.., 1b1..., 1c1
Are electrically connected to the fire detectors 4a, 4b, 4c for each building via common signal lines 5a, 5b, 5c, respectively. The fire detectors 4a, 4b, 4c are electrically connected to the monitoring panels 80a, 80b, 80c of each building via signal lines 13a, 13b, 13c, respectively. These monitoring panels 80a to 80c are electrically connected to the general monitoring panel CP via a common signal line LAN.

Although not shown, the common signal line LAN includes a pair of signal lines, that is, a main loop signal line for transmitting signals in one direction and a sub-loop signal line for transmitting signals in the other direction. These are two signal lines connected in a loop. Each of the general monitoring panel CP and the monitoring panels 80a, 80b, and 80c for each building is sequentially assigned an address with a serial number, and the general monitoring panel CP and the monitoring panels 80a, 80b, A call signal, a return signal, and other control signals are transmitted and received between the terminals 80c via a common signal line LAN. In this case, the same signal is sent to the main loop signal line and the sub-loop signal line (not shown) of the common signal line LAN, and the received contents are matched. With this configuration, usually, the general monitoring panel CP sequentially and cyclically sends out a calling signal, and the called monitoring panel returns status information and the like to the general monitoring panel CP, so that each monitoring panel is normally connected. Make sure you are.

Each of the monitoring panels 80a, 80b, 80c also has sprinkler repeaters 50a1 to 50a4,..., 50b1 via common signal lines 12a, 12b, 12c, respectively.
.., 50c4..., 50c1 to 50c4. Each sprinkler repeater 50a1-5
0a4..., 50b1 to 50b4.
.. 50c4... Respectively correspond to the corresponding regional valve devices 20a1.
20a4 ... 20b1-20b4 ... 20c
1-20c4... Are electrically connected.

In FIG. 1, each fire receiver 4a, 4
b, 4c are fire detectors 1a1 to 1a4,.
Although the fire signals are received from 1b4..., 1c1 to 1c4..., Each fire receiver is omitted and the monitoring panels 80a, 80b, and 80c in each building receive the fire signals. Alternatively, the general monitoring panel CP may receive the fire signal and report the fire signal to the monitoring panels 80a, 80b, 80c of each building.

FIG. 2 is a schematic configuration diagram showing another essential part of one embodiment of the present invention. In FIG. 2, B1F, 1F,
2F, 3F, 4F,... Represent a plurality of floors of each building described above, for example, the ground floor, the first floor, the second floor, the third floor, the fourth floor,. First, an automatic fire alarm system will be described. A large number of the above-described fire detectors 1 are provided 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. The above-mentioned fire receiver 4 is disposed, for example, in a disaster prevention center (not shown) on the first floor 1F, receives a fire signal from the fire detector 1, and via a signal line 5 common to the fire relay 2 on each floor. It is connected. In addition, equipment necessary for automatic fire alarm equipment such as local sound equipment 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 fire with a small amount of water in the early stage of a fire. In FIG. 2, 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 liters / min, floor area 2.
1 m ² per one installed, also need only installed per floor area 1.3 m ² is for restaurant small compartments, has a wider sprinkling area with less water discharge amount, to reduce the water spray density However, it can exhibit sufficient fire extinguishing ability. 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 of the branch pipes 7 to supply fire extinguishing water to a number of NS heads 8. FIG. 5 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 monitoring panel (hereinafter, referred to as an NS monitoring panel) arranged in the above-mentioned disaster prevention center, which is connected to all the NS repeaters 50 via the common signal line 12 and is connected to the fire receiver 4. And signal line 13
8 will be described later in detail with reference to FIG.

The NS system according to the present invention is configured as described above. In FIG. 1, a fire occurs on, for example, the second floor of the building a, and therefore at least one of the fire detectors 1a2 provided on the second floor. Assuming that one fires to generate a fire signal, this fire signal is transmitted to the fire receiver 4a via the common signal line 5a. Then, the fire receiver 4a processes the received fire signal by floor fire signal, and then notifies the NS monitor panel 80a via the signal line 13a.

The NS monitor panel 80a is connected to the NS repeater 50 provided on the second floor in this case via a common signal line 12a.
a2 transmits the coded control signal to the corresponding NS valve unit 20a2 via the signal line 11a2, and the NS relay unit 50a2 waits for the NS valve unit 20a2. State. Note that the NS valve unit 20a2 is in a standby state in which the NS head unit 8 is opened so that water can be immediately sprinkled from the NS head unit 8a.
Is to put 2. Thereafter, when the NS head 8 is opened by the heat of the fire, the 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 20a2 sends the coded flowing water signal to the NS relay unit 50a2 via the NS repeater 50a2.
The self-address is transmitted to the S monitoring panel 80a and further to the general monitoring panel CP via the common signal line LAN, whereby a water discharge warning is displayed on the general monitoring panel CP. When the NS head 8 starts discharging water, the pump unit 9 is automatically activated, so that fire extinguishing water is supplied from the water source to the pump unit 9.
Water is continuously discharged from the NS head 8 through the water supply main pipe 6, the NS valve unit 20a2, and the branch pipe 7.

FIG. 3 is a diagram showing an example in which the NS repeaters 50 of each building 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 of the groups, and the group having the NS repeater that has detected the change in the state of the corresponding NS valve unit 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. 4 is a diagram for explaining an operation example of FIG.
The operation proceeds from the upper left to the upper right in FIG. 4, 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. 4, 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. 4, a broken-line frame indicates that no response was made at the response timing, and a thick-line frame indicates that the 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. 4, 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 to the NS monitoring panel 80 at its own response timing only when the NS repeater in its group detects a state change. In the example shown in FIG. 4, 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 sets the NS repeater 50-1F or 50-2 belonging to the group G2.
It can be understood that F 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 command CM1 are sent 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 to the NS monitoring 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 for checking for a disconnection of the common signal line 12 will be described. In P01 of FIG. 4, 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.

Although the type information CL will not be described in detail except for the NS repeater, there is information indicating a repeater for a pump unit, a repeater for an auxiliary faucet, 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. 5 shows the N used in one 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. 5, 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. Normally closed, but fire detector 1 (Fig. 2)
The NS valve 21 that can be opened by the control signal from the NS monitoring panel 80 in accordance with the fire signal from
An electric remote test valve 26 and a manual test valve 27 for testing the flow of water to the secondary pipe 25, and pressurized fire extinguishing water in the primary pipe 23 are adjusted to a predetermined pressure by adjusting the opening of the NS valve 21. A pressure-regulating pilot valve 28 that adjusts the pressure and supplies it to the secondary pipe 25, an electric start valve 29 that normally shuts off the pressurized release of the NS valve 21, and performs a shift operation to the above-described openable state, and Manual start valve 31 connected in parallel with this
And a pressure relief valve 32 for discharging abnormally high pressure in the secondary side pipe 25.

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.
5. Replenish a small amount of primary pressure when the pressure drops due to a temperature change or the like. At this time, the NS valve 21 does not open, so that no open signal (running water signal) is generated. 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. 2) 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 27 is set so that the amount of fire extinguishing water equivalent to at least one of the NS heads 8 is drained by the opening operation thereof.
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 into the inside from the secondary side 24 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 pipe. 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 detection chamber 46 which is closed by the valve 35 when the valve 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. Fire extinguishing water introduced to the secondary side 24 when the NS head 8 (FIG. 2) is opened
After the pressure is regulated by the pressure regulating pilot valve 28 in accordance with the pressure reduction of
8, the piston 36 moves the valve body 35 to the valve seat 33
The fire extinguishing water on the primary side 22 is gradually introduced into the secondary side 24 and eventually into the secondary side 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, when the water discharge from the NS head 8 (FIG. 2) continues, this large water discharge amount is detected by a pressure air tank (not shown) or the like, and the pump unit 9 (FIG. 2) is activated to supply water. NS valve 2 from main pipe 6 (Fig. 2)
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. 6 shows the N used in one 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, it returns to the state shown in FIGS. 6 and 7 and the power supply voltage is applied in the reverse direction, so that the start-up valve 29 is closed, and as in the case of the fully open state, 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 detects the ON / OFF of the contact due to the operation of each part of the NS valve unit 20 using a photocoupler or the like, such as the full opening and full closing of the starting valve 29 and the full opening and full closing of the remote test valve 26. 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. 8 shows N used in one 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 fire receiver 4, displays an alarm when the NS head 8 is opened, and sends the alarm to the general monitoring panel CP. The transmission processing relating to the operation status of the server is performed. 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. 2). NS monitoring panel 8
0 has a state monitoring function, constantly monitors each part of the system, and when the NS valve 21 is opened and closed such as during maintenance or inspection, the common signal line L is sent to the general monitoring panel CP.
Information is transmitted via the AN, and the abnormal state is displayed and alarmed on the panel. 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. In addition, the NS monitoring system can also perform automatic disconnection monitoring of electric circuits.
An operation test and a backup power supply test can be easily performed. NS
The monitoring panel 80 has an NS-only operation mode in addition to the normal self-fire alarm interlocking mode so that the NS system functions even when the fire / fire receiver 4 fails or when a test and inspection is performed. 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,
A memory RAM2 for storing signals and data, interfaces IF21, IF22 with each part of the NS monitoring panel 80,
It has IF23 and IF24.

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 24. 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 provided as needed, and
To monitor the liquid crystal display LCD, turn on the various light emitting diodes LED, and monitor the input of the switch SW in the same manner as the general monitoring panel CP described later. This portion may be separately configured as a maintenance device, and the IF 21 may be provided with a connection terminal of the device. The backup power supply circuit 87
A commercial power supply voltage of AC 100V is applied to the DC,
The power is converted to a constant voltage of 24 V, and the power supply line P is connected to each NS repeater 50.
This is a circuit for supplying a backup power supply by KC and PK, and has a backup backup power supply 87a. The transmission circuit 88 is used by the NS monitoring panel 80 to transmit and receive information to and from the general monitoring panel CP via the signal line LAN.
F23. When the information of each part of the NS monitor panel 80 is called from the general monitor panel CP, the information is transmitted with its own address. When the command from the general monitor panel CP is received and its own address is specified. ,Execute. Input IF unit 90 and output IF unit 10
Reference numeral 0 denotes a unit for transmitting and receiving a parallel signal (on / off signal) between the NS monitoring panel 80 and the fire receiver 4 as described later. Each unit has a microcomputer (not shown), and transmits and receives information to and from the transmission circuit 82 by serial transmission. Therefore, each unit has the NS repeater 5
It has an address equal to 0, 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. 9 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 95 converts the voltage taken out 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 photocoupler or the like (not shown). For example, four response circuits 97 are provided in one input IF unit 90. For example, four signal lines are connected to each response circuit 97, and ON / OFF of each of the four signal lines is detected. The unit can input ON / OFF of 16 signal lines.

FIG. 10 shows the output I in the NS monitoring panel 80 of FIG.
FIG. 3 is a detailed block diagram of an F unit 100. This output IF unit 100 also has the NS monitoring panel 80
And a control circuit 101 for transmitting and receiving signals to and from the unit. The control circuit 101 includes the same MPU 4, ROM 4, RAM 4, IF as shown in FIG.
41, 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 ON / OFF between each of the common lines C and the common line C by a photocoupler, a relay, and the like (not shown). One output IF unit 100 is provided with four output circuits 108, and each output circuit 108 is connected with four signal lines,
ON / OFF of each signal line is detected, and one unit
ON / OFF of the six signal lines can be controlled.

FIG. 11 is a block diagram showing a general monitoring panel CP used in one embodiment of the present invention. The general monitoring panel CP collects information of the NS monitoring panels 80a, 80b, 80c for each building via a common signal line LAN, and sends out control commands as needed. Then, the information of the NS monitoring panels that are monitored and controlled for each building is collectively displayed and alarmed. The general monitoring panel CP includes a control circuit 201.
Has a microprocessor MPU5 which is a control center, a memory ROM5 for storing programs, a memory RAM5 for storing signals and data, and interfaces IF51, IF52 and IF53 for each part of the general monitoring panel CP.

The transmission circuit 202 in the general monitoring panel CP
It is connected to the F52 and is transmitted and received between the NS monitoring boards by serial transmission between the signal lines LAN, and is controlled by a one-chip microcomputer (not shown). The alarm 203 is, for example, a buzzer connected to the IF 53.
The power supply circuit 204 is a circuit that converts a commercial power supply voltage of AC 100 V to a constant voltage and supplies the constant voltage to a necessary internal portion. It has a standby power supply 204a when the commercial power supply goes down. The display control circuit 206 is connected to the IF 51, and displays a liquid crystal display LCD on the board surface and various light emitting diodes LE.
It monitors input of various switches SW such as lighting of D and test input.

Next, the operation of one embodiment of the present invention will be described in detail below. FIG. 12 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, 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 2 (not shown in FIG. 12). 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.

In step S4, the NS monitoring panel 80 sends a fire input display signal to the general monitoring panel CP, and
NS repeater 5 corresponding to fire start position with valve start signal
Send to 0. The NS repeater 50 that has received the start signal opens the start valve 29 in the NS valve unit 20 in step S5. When the start valve 29 is fully opened to be in a standby state, the NS valve unit 20 sets the NS repeater 50 to the standby state. , An open signal of the starting valve 29 is sent to the NS monitoring panel 80.
The NS monitoring panel 80 that has received the opening signal of the starting valve 29 sends the fact that the starting valve 29 of the floor is opened to the general monitoring panel CP in step S6, and displays it on the general monitoring panel CP.

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
The S monitoring panel 80 sends the water discharge area to the general monitoring panel CP for display and alarm operation, and also outputs the information to the fire receiver 4. Performs the same display and alarm as the CP.

Thereafter, at 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 general monitoring panel CP is set by the S repeater 50.
To the fire receiver 4 at step S16. Then, in step S17, the NS valve 2
Numeral 1 supplies the fire-extinguishing water whose pressure has been adjusted, and the fire is extinguished in step S18. 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 by a signal from the comprehensive monitoring panel CP. In S20, the water discharge is stopped by closing the starting valve 29. Also, the NS monitoring panel 80 determines in step S2
At 1, the display / alarm on the fire receiver 4 is restored.

(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 decrease in the secondary pressure in step S31, the NS repeater 50 outputs a signal indicating the abnormal state to the NS. It is sent to the monitoring panel 80. The NS monitoring panel 80 sends the state abnormality to the general monitoring panel CP according to the content of the signal received in step S32 to display and alert, and also outputs the alarm to the fire receiver 4. The fire receiver 4 displays the same information as the NS monitor panel 80 in step S33.
Give an alarm. Also, the failure of the NS system itself is sent to the comprehensive monitoring panel CP in steps S34 and S35 as in steps S32 and S33. If there is a failure in the automatic fire alarm (self-fire alarm) in step S36, the fire receiver 4 notifies this to the NS monitoring panel 80, and the NS monitoring panel 80 automatically switches the operation mode in step S37. Alternatively, the single operation mode is sent to the general monitoring panel CP for display.

(3) Single operation mode FIG. 13 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, sends it to the general monitoring panel CP in step S44 to display a fire, and sends an NS valve activation signal to the NS repeater 50. I do. Upon receiving the start signal, the NS repeater 50 opens the start valve 29 in the NS valve unit 20 in step S45, and when the start valve 29 is fully opened to be in a standby state, the NS valve unit 20 switches to the NS repeater 50. , An open signal of the starting valve 29 is sent to the NS monitoring panel 80. The NS monitoring panel 80 that has received the opening signal of the starting valve 29 sends to the general monitoring panel CP that the starting valve 29 of the floor is opened in step S46.

Since the NS head 8 has been opened in step S42, the NS valve 21 is opened in step S47, and when 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 sends the information to the general monitoring panel CP to display the water discharge area or to perform an alarm operation.

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 general monitoring panel CP is used by the S monitoring panel 80.
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. 14 is a diagram showing an operation flow in the backup operation mode. Switch SW of comprehensive monitoring panel CP (Fig. 1
When the backup operation input is performed to the backup power supply circuit 87 of the NS monitoring panel 80 via the signal line LAN by operating 1), the backup power supply lines PKC and PK are turned on, and the NS monitoring panel 80 is turned on in step S60. Stop the control function of.

In step S61, a fire occurred, the NS head 8 was opened in step S62 due to the heat, and in step S63, the secondary pressure 25 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 S68, the NS valve 21 supplies the regulated fire extinguishing water, and in step S69, the fire is extinguished.

Next, the system maintenance management 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 a conventional sprinkler fire extinguishing system, and is operated by operating a test start button on the general monitoring panel CP.
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. 15 is a diagram showing an operation flow of the remote test sequence. When the switch SW of the general monitoring panel CP is operated in step S71 to input a remote test to the general monitoring panel CP, the general monitoring panel CP displays the remote test and the remote test address in step S72, and the corresponding NS.
A test start signal is transmitted to the monitoring panel 80, and the NS monitoring panel 80 transmits an open signal of the remote test valve 26 to the remote test valve 26 in the NS valve unit 20 via the NS repeater 50 in step S73. In step S74, the remote test valve 26
Is opened, and after checking whether or not the fully open signal is returned within 20 seconds, the NS monitoring panel 80 sends an opening of the remote test valve 26 to the general monitoring panel CP in step S75, and the general monitoring panel CP It is displayed at S76. After the remote test valve 26 is fully opened (or before the fully opened signal), the NS monitoring panel 80 checks in step S78 that the secondary pressure drop signal generated in step S77 returns within 3 minutes. The lowering of the next pressure is sent to the integrated monitoring panel CP for display (step S79), and the opening signal of the starting valve 29 is sent to the NS valve unit 2 via the NS repeater 50.
It is sent to the starting valve 29 during 0. After checking that the start valve 29 is fully opened in step S80 and a fully open signal is returned within 20 seconds, the NS monitoring panel 80 proceeds to step S81.
Sends the opening of the start valve 29 to the general monitoring panel CP, and displays it in step S82.

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 S83 returns within 3 minutes.
In step S84, a signal 0 indicates that the NS valve 21 is open to the general monitoring panel CP for display (step S85), and a signal for closing the remote test valve 26 is transmitted to the remote test valve 26 via the NS repeater 50. After checking that the remote test valve 26 is closed in step S86 and that the fully closed signal is returned within 20 seconds, the NS monitoring panel 80 proceeds to step S8.
At 7, the closure of the remote test valve 26 is sent to the general monitoring panel CP, and displayed at step S88. In the meantime, in step S89, the NS monitoring panel 80 sends a closing signal of the starting valve 29 to the starting valve 29 via the NS repeater 50. In step S90, the startup valve 29 is closed, and it is checked that the fully closed signal is returned within 20 seconds.
In the case of 0, the closing of the starting valve 29 is sent to the general monitoring panel CP in step S91 and is displayed in step S92.

Thereafter, in step S93, the NS valve 2
1 to stop the flowing water signal, this is displayed in steps S94 and S95, and the secondary pressure drop signal is restored in step S96, and this is displayed in steps S97 and S98. After confirming that the above response falls within 10 seconds, it is displayed in step S99 that the remote test has been completed. In addition, at the time of abnormality,
Restore the NS valve 21 and restore the NS valve 21
Number and 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 is performed sequentially from the NS valve 21 having the smallest address (in the designated range) for every NS valve 21 or NS monitor panel 80. 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 general monitoring panel CP always and sequentially circulates the NS monitoring panel 80
To constantly monitor the electric circuit between the NS monitoring panels 80,
Similarly, the NS monitoring panel 80 constantly monitors the electric circuit between the NS repeaters 50, and displays an alarm 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. It starts by operating the operation test switch of the general monitoring panel CP. (5) Stand-by power supply test
The abnormalities of the backup power supplies 84a and 87a in the NS monitor panel 80 are automatically or collectively and individually tested.

In the NS system described above, the fire receiver 4
Discriminates the floor where the fire has occurred and sends it to the NS monitoring panel 80. According to the information, the NS monitoring panel 80
Is transmitted to the NS monitoring panel 80 only by the fire receiver 4 notifying the information of the activated fire detector 1.
May be used to determine the floor where the fire occurred, and send a start command to the NS repeater 20 of the corresponding floor. Therefore, in the above embodiment, the fire detector 1 of the automatic fire alarm system is used as the fire detecting means. However, the present invention is not limited to this, and the NS monitoring may be performed by separately providing a fire detector or the like. Board 80
It is only required that the location of the fire can be determined.

FIG. 16 is a schematic diagram showing another essential part of another embodiment of the present invention. In FIG. 16, the sprinkler head does not have to be of the fast-moving type, but may be of the ordinary wet type.
Expressed by Similarly, the district 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 monitoring panel is designated by an SP monitoring panel 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 another embodiment of the present invention will be described. In this SP system, a fire occurs in FIG. The SP head 8
When A (FIG. 16) is opened, it is provided on the third floor and FIG.
The pressure of the secondary side pipe 25 and the secondary side 24 of the automatic alarm valve 20A shown in the schematic configuration diagram in FIG. Then, due to the pressure difference generated between the primary side 22 and the secondary side 24 of the automatic alarm valve 20A, the operating valve 49a rotates in the valve opening direction (the direction of the arrow) about the arm shaft 49b. Operating valve 49a
The valve body 35 provided on the lower surface of the valve separates from the valve seat 33. As a result, fire extinguishing water flows from the water supply main pipe 6 (FIG. 16) through the primary side 22, and a part of the fire extinguishing water passing through the opening of the valve seat 33 is pressure-switched through the flowing water detection chamber 46 and the pipe 22c. Reach 45. For this reason, the pressure switch 45 operates to send the running water signal to the SP repeater 50A provided on the third floor.
And to the SP monitor panel 80A via the common signal line 12, and further to the general monitor panel CP via the common signal line LAN, so that the general monitor panel CP displays a water discharge warning on the panel. . When the SP head 8A starts discharging water and the pressure in the pressure air tank (not shown) decreases, the pump unit 9 is automatically started by the signal. Note that 49
c is a main valve provided near the primary side 22 of the automatic alarm valve 20A, and its state detection limit switch 49d is also connected to the SP repeater 50A by an electric circuit.

Such a series of monitoring and control is performed by the SP monitoring panel 80A and the general monitoring panel CP installed in the disaster prevention center. SP relay 50 corresponding to each automatic alarm valve 20A
A is arranged, each SP repeater 50A and SP monitor panel 80A
, An information signal is transmitted and received by serial transmission.
The SP monitor panel 80A is provided with a fire receiver 4 of the automatic fire alarm system.
It sends and receives a fire signal and a water discharge signal between the two, and constitutes a disaster prevention facility integrated with an automatic fire alarm facility. In addition,
SP repeater 50A dedicated to SP system and SP monitoring panel 8
0A is installed as a separate signal system 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. 18 is a wiring diagram partially showing a block diagram of an SP repeater 50A used in another 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 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 IF6 with each part in P repeater 50A
1, IF62 and IF63.

Transmission circuit 52A in SP repeater 50A
Are connected to the IF 63, and 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.
The voltage of 0 V is monitored, and when a voltage drop due to a poor connection of the power supply lines PVCA and PVA is detected, MP via the IF 62 is detected.
Notify U6.

The relay U controls the opening of the remote test valve 26 in the automatic alarm valve 20A shown in FIG. 19, and switches the contacts u1 and u2 when energized so that the voltage from the power line PVCA is changed to the contact. 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. 18 and 19 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. 19 is obtained when fully closed, and application of a reverse voltage is prevented. These contacts 26d and 26e are switched when 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 photocoupler or the like, the ON / OFF of the contact due to the operation of each part of the automatic alarm valve 20A, for example, the pressure switch 45 or the limit switch 49d, such as when the remote test valve 26 is fully closed. For example, when the remote test valve 26 is fully opened, the response circuit 57A is connected to the remote test valve 26 by the PVCA-u1-A and the A-contact 26d (fully open) -terminal C and the A-response circuit 57A-ground PVA. Detect full opening.

FIG. 20 is a block diagram showing an SP monitor panel 80A used in another embodiment of the present invention. This SP
The monitoring panel 80A displays an alarm when the SP head 8A is opened, and performs a process of transmitting a water discharge signal to the general monitoring panel CP. 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 and constantly monitors each part of the system. When the automatic alarm valve 20A and the main valve 49c (FIG. 17) are opened and closed and the localization is removed, such as during maintenance and inspection, the integrated monitoring panel CP The information is transmitted via the signal line LAN, and the abnormal state portion is displayed and alarmed on the panel. The remote automatic test function of the SP monitor panel 80A performs a remote operation test on the fully automatic alarm valve 20A sequentially based on a programmed sequence, checks the operation function, and if an abnormality is found, identifies the cause. After displaying and printing out, a test abnormal 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 MPU7 which is a control center, and a memory R in which a program is stored.
OM7, memory RAM7 for storing signals and data, S
Interface IF 71 with each part of P monitoring panel 80A,
It has IF72, IF73 and IF74.

Transmission circuit 82A in SP monitor panel 80A
Is connected to the IF 72 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 74. 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.
The power supply lines PVCA and PCA are connected to the input IF unit 90 and the output IF unit 100 described above with reference to FIGS.
VA supplies power during operation, and has a standby power supply 84Aa when commercial power is down. The display control circuit 86A is provided as needed, and
71, and the general monitoring panel C described above with reference to FIG.
As with P, the display of the liquid crystal display LCD, the lighting of various light emitting diodes LED, and the monitoring of the input of the switch SW are performed. Then, this portion may be separately configured as a maintenance device, and the IF 71 may be provided with a connection terminal of the device. The transmission circuit 88A is for the SP monitoring panel 80A to transmit and receive information to and from the general monitoring panel CP via the signal line LAN, and is connected to the IF 73.

Next, a description will be given of a system maintenance management according to another embodiment of the present invention. (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. 21 is a diagram showing an operation flow of the remote test sequence. In step S101, the general monitoring panel CP
When a remote test is input to the general monitoring panel CP by operating the switch SW, the general monitoring panel CP displays the remote test and the remote test address in step S102 and sends a test start signal to the corresponding SP monitoring panel 80A. Then, in step S103, the SP monitoring panel 80A sends 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 S104, the remote test valve 26 is opened, and after checking whether or not the fully open signal is returned within 20 seconds, the SP monitor panel 80A determines in step S105 that the remote test valve 26 is open in the comprehensive monitor panel C.
The data is sent to P and displayed in step S106. After the remote test valve 26 is fully opened (or before the fully open signal), step S
After checking that the running water signal generated at 107 returns within 3 minutes, the SP monitor panel 80A determines at step S108 that the automatic alarm valve 20A has been opened by the general monitor panel CP.
(Step 109) and sends a signal to close the remote test valve 26 to the remote test valve 26 via the SP repeater 50A. After checking that the remote test valve 26 is closed in step S110 and that the fully closed signal is returned within 20 seconds, the SP monitoring panel 80A sets in step S11
At step 1, the closing of the remote test valve 26 is sent to the general monitoring panel CP, and displayed at step S112.

Thereafter, the running water signal was stopped by closing the automatic alarm valve 20A in step S113, and this was displayed in steps S114 and S115, and it was confirmed that the above response fell within 10 seconds. Thereafter, it is displayed in step S116 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 valves 20A of all the automatic alarm valves 20A or the automatic alarm valves 20A with the smaller addresses (in the designated range) for each SP monitor panel 80A. 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 integrated monitoring panel CP always and sequentially circulates the SP monitoring panel 80
A is called to constantly monitor the electric circuit between the SP monitor panels 80A, and the SP monitor panel 80A also constantly monitors the electric circuit between the SP repeaters 50A, and displays an alarm 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. Start by operating the operation test switch of the comprehensive monitoring. (5) Preliminary power supply test An abnormality of the backup power supply 84Aa in the SP monitor panel 80A is automatically tested.

As described above, in each embodiment of the present invention,
As shown in FIG. 1, the general monitoring panel CP of the NS system or the SP system has monitoring panels 80a, 80b, 80c for each building.
Collects information through a common signal line LAN and sends out a control signal. For example, as shown in FIG. 22, a signal line L for collecting information of the fire receivers 4a, 4b, 4c for each building.
Using the AN, the information of the NS system or the SP system may be collected simultaneously with the information of the automatic fire alarm system in the comprehensive monitoring panel CP. In this case, the monitoring panels 80a, 80 for each building are used.
The information of b, 80c is transferred to the fire receivers 4a, 4b, 4c of each building via the signal lines 13a, 13b, 13c,
Comprehensive monitoring panel CP has fire detectors 4a, 4b, 4c for each building
By collecting information from, information can be aggregated. A control signal can be transmitted by the reverse. Further, as shown in FIG. 23, the monitoring panels 80a, 80b, 80c for each building and the fire detector 4 for each building are connected to the signal line LAN.
a, 4b, 4c may be connected equally, and the general monitoring panel CP may collect information on the automatic fire alarm system and information on the NS system or the SP system. In this case, the fire receivers 4a, 4b for each building , 4c based on fire information, comprehensive monitoring panel CP
Sends out a fire signal, and the monitoring panel 80
a, 80b, and 80c can recognize the fire.

Further, a general monitoring panel CP for collecting information on the automatic fire alarm system and information on the NS system or the SP system.
24 uses two signal lines LAN1 and LAN2 as shown in FIG. 24, and a monitoring panel 8 for each building is connected to the signal line LAN1 as in FIG.
0a, 80b, 80c, and the fire receivers 4a, 4b, 4c for each building may be connected to the signal line LAN2 in the same manner as in FIG. The monitoring panels 80a, 80 for each building
0b and 80c can recognize the fire. Furthermore, a general monitoring panel CP for NS system or SP system
1 and a general monitoring panel CP2 for automatic fire alarm
Monitoring panels 80a, 80b, 80 for each building are connected to the signal line LAN1.
c and the signal line LAN2 to the fire receiver 4 for each building.
a, 4b, and 4c may be connected, and information may be transferred between the general monitoring panels CP1 and CP2 via the signal line 13cp. In this case, the fire signals of the fire receivers 4a, 4b, 4c for each building are collected by the general monitoring panel CP2 via the signal line LAN2, transferred to the general monitoring panel CP1 via the signal line 13pc, and By transmitting a fire signal from the monitoring panel CP1 via the signal line LAN1, the monitoring panels 80a, 80 for each building are sent.
b, 80c can recognize the fire.

[0087]

According to the first aspect of the present invention, there is provided a sprinkler fire extinguishing system used in combination with fire detecting means, wherein a water supply main pipe extending through a plurality of floors of each of a plurality of buildings such as a building; A branch pipe branching out from the water supply main pipe for each of the plurality of floors, a plurality of sprinkler heads provided on the branch pipes on each floor, and provided between the water supply main pipe and each branch pipe, wherein a plurality of districts valve device for supplying extinguishing water to the sprinkler heads, are electrically connected to each and each district valve device, a sprinkler repeater for controlling said each district valve device with monitoring the state, each
It is connected via a common signal line and all the scan Purinkura repeater for each building, a common signal and monitoring panel for each building, and all monitoring panel for transmitting and receiving the information by each sprinkler repeater and coded signal It has an operation unit that is connected via a line and receives an operation input for monitoring and controlling the monitoring panel for each building and a display unit for displaying various information, and a monitoring panel and a code for each building. The present invention according to claim 4 is provided with a general monitoring panel that transmits and receives information based on the digitized signal, and a water supply main pipe extending through a plurality of floors of each of a plurality of buildings such as a building and the water supply main pipe. A branch pipe that branches from the pipe for each of the plurality of floors, a plurality of sprinkler heads provided on the branch pipe on each floor, and a plurality of sprinkler heads provided between the water supply main pipe and each branch pipe, respectively, Supply fire extinguishing water to sprinkler head And district valve device that is electrically connected to each and each district valve device, a sprinkler repeater to monitor its state, connected via a common signal line and all the sprinkler repeaters for each building, each and monitoring panel for each building to transmit and receive by that information in the sprinkler relay and coded signal is connected through all the monitoring panel and the common signal line, the monitoring and controlling a monitoring panel for each building It has an operation unit for receiving an operation input and a display unit for displaying various types of information, and includes a monitoring panel for each building and a general monitoring panel for transmitting and receiving information by a coded signal. Monitoring and control of sprinkler fire extinguishing equipment can be performed for each building, and when inspection work or test operation is performed, only the building that is applicable can be put into an alarm stop state, and equipment in other buildings can be monitored and controlled as usual. Has the effect of That.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating a main part of an embodiment of a sprinkler fire extinguishing system according to the present invention.

FIG. 2 is a schematic configuration diagram showing another main part of one embodiment of the present invention.

FIG. 3 is a diagram showing an example in which NS repeaters of each building are divided into a plurality of groups.

FIG. 4 is a diagram illustrating an operation example of FIG. 3;

FIG. 5 is a schematic configuration diagram showing an NS valve unit used in one embodiment of the present invention.

FIG. 6 is a wiring diagram partially showing a block diagram of an NS repeater used in one embodiment of the present invention;

FIG. 7 is a wiring diagram showing an electrical part of the NS valve unit of FIG. 5;

FIG. 8 is a block diagram showing an NS monitoring panel used in one embodiment of the present invention.

FIG. 9 is a block diagram showing an input IF unit in the NS monitoring panel of FIG. 8 in detail.

FIG. 10 is a block diagram showing an output IF unit in the NS monitoring panel of FIG. 8 in detail.

FIG. 11 is a block diagram showing a general monitoring panel used in one embodiment of the present invention.

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

FIG. 13 is a diagram showing an operation flow in a single operation mode.

FIG. 14 is a diagram showing an operation flow in a backup operation mode.

FIG. 15 is a diagram showing an operation flow of a remote test sequence.

FIG. 16 is a schematic configuration diagram showing another main part of another embodiment of the present invention.

FIG. 17 is a schematic configuration diagram showing an automatic alarm valve used in another embodiment of the present invention.

FIG. 18 is a wiring diagram partially showing a block diagram of an SP repeater used in another embodiment of the present invention.

FIG. 19 is a wiring diagram showing electrical parts of the automatic alarm valve of FIG. 16;

FIG. 20 is a block diagram showing an SP monitor panel used in another embodiment of the present invention.

FIG. 21 is a diagram showing an operation flow of a wet remote test sequence.

FIG. 22 is a block diagram in the case where a fire receiver for each building is connected instead of the monitoring panel for each building in FIG. 1;

FIG. 23 is a block diagram in a case where a fire receiver for each building is connected in addition to the monitoring panel for each building in FIG. 1;

FIG. 24 is a block diagram when two signal lines are used.

FIG. 25 is a block diagram when two signal lines and two general monitoring panels are used.

[Explanation of symbols]

1a1 to 1a4, 1b1 to 1b4, 1c1 to 1c4,1
Fire detectors 4a to 4c Fire receiver 6 Water supply main pipe 7 Branch pipe 8 NS head 8A SP head 5a to 5c, 5, 12a to 12c, 12, LAN, LA
N1, LAN2 Common signal lines 20a1 to 20a4, 20b1 to 20b4, 20c1
20c4 District valve device 20 NS valve unit 20A Automatic alarm valve 50a1 to 50a4, 50b1 to 50b4, 50c1
50c4 Sprinkler repeater 50 NS repeater 50A SP repeater 80a-80c Monitoring panel for each building 80 NS monitoring panel 80A SP monitoring panel CP, CP1, CP2 General monitoring panel

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) A62C 27/00-39/00 G08B 17/00

Claims (4)

(57) [Claims] 1. A sprinkler fire extinguishing system used in combination with fire detection means, comprising: a water supply main pipe extending through a plurality of floors of each of a plurality of buildings such as a building; Branch pipes branching and extending for each of the above; a number of sprinkler heads provided on the branch pipes of each floor; and a fire extinguishing water provided between the water supply main pipe and the respective branch pipes to the plurality of sprinkler heads. and district valve device for supplying, connected each district valve device and to each electrically, the sprinkler repeater for controlling said each district valve device as well as monitor its state, and all of the scan Purinkura repeaters for each building are connected via a common signal line, said a monitoring panel for each building to transmit and receive information by each sprinkler repeater and coded signal is connected through all the monitoring panel and the common signal line, the Comprehensive monitoring that has an operation unit that receives an operation input for monitoring and controlling a monitoring panel for each building and a display unit that displays various information, and that transmits and receives information using a coded signal to and from the monitoring panel for each building A sprinkler fire extinguishing system, comprising: a panel; 2. The monitoring panel for each building is connected to the common signal line.
Through the fire detection together with each sprinkler repeater
Output means, and a coded signal from the fire detection means.
2. The method according to claim 1 , wherein a fire signal is received.
Sprinkler fire extinguishing equipment. 3. The fire detecting means is provided by a fire receiver.
Is monitored, the fire receiver receives the fire signal from the fire detection means, the monitoring panel or comprehensive monitoring of each building
The sprinkler fire extinguishing system according to claim 1, wherein the notification is sent to one of the panels . 4. A water supply main pipe extending through a plurality of floors of each of a plurality of buildings 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 a branch pipe of each floor. A plurality of sprinkler heads provided between the water supply main pipe and each branch pipe, and a district valve device for supplying fire-extinguishing water to the plurality of sprinkler heads; is connected to a sprinkler repeater to monitor its state, connected via a common signal line and all the sprinkler repeaters for each building, to transmit and receive the that by the respective sprinkler repeater and coded signal information A monitor panel for each building, and an operation unit that is connected to all monitor panels via a common signal line, receives an operation input for monitoring and controlling the monitor panel for each building, and displays various information. Display unit A sprinkler fire extinguishing system, comprising: a monitoring panel for each building; and a comprehensive monitoring panel for transmitting and receiving information based on coded signals.