JP2004290430A - Sprinkler fire-fighting facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize emergency water draining by simply releasing a water drainage stop from a sprinkler head by a fire sensor which does not detect a fire. <P>SOLUTION: This sprinkler fire-fighting facility includes an emergency water drainage switch 32 which controls to open a control valve 18 by pseudo-outputting a fire signal in a state that a stream water is detected by a stream water detecting unit 16 and the control valve 18 is controlled to a closed state due to the no fire signal from a fire reception signal panel 1. In this case, the emergency water drainage switch 32 may be used also as a fire decision switch 33 provided on the fire reception signal panel 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sprinkler fire extinguishing system that discharges water for fire extinguishing from a sprinkler head when a fire occurs, and more particularly to a sprinkler fire extinguishing system that controls water discharge by using each dwelling unit of an apartment house as a single protective section.
[0002]
[Prior art]
In a conventional sprinkler fire extinguishing system, in a steady monitoring state, a control valve provided in a water supply main pipe is opened to supply fire extinguishing water to a sprinkler head, and a flowing water flowing by discharging water due to operation of the sprinkler head due to a fire is detected by a flowing water detection device. At this time, if the fire detector detects a fire, the control valve is kept open, and fire extinguishing water is supplied to the activated sprinkler head to discharge water.
[0003]
On the other hand, when the fire detector has not yet detected a fire when the sprinkler head detects a fire and operates, the control valve is determined to be a malfunction of the sprinkler head and the control valve is closed to control the sprinkler head. We stop water discharge from and reduce water loss.
[0004]
[Patent Document 1]
JP 2000-279542 A
[Patent Document 2]
JP-A-2002-035157
[0005]
[Problems to be solved by the invention]
However, in such a conventional sprinkler fire extinguishing system, if the fire detector fails to detect a fire for any reason, such as a failure of the fire detector or a remote location of the fire detector, the sprinkler head is Is determined to be malfunctioning, the control valve is controlled to the closed state, and the water discharge is stopped.
[0006]
For this reason, when the sprinkler head is activated by an actual fire, the resident who confirms the fire waits for the fire detector to detect the fire or manually operates the emergency release valve installed outside the dwelling unit. There is no choice but to operate the emergency opening valve outside the dwelling unit in the event of a fire.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a sprinkler fire extinguishing system that can easily release a water discharge stop from a sprinkler head due to a fire detector not detecting a fire to enable emergency water discharge.
[0008]
[Means for Solving the Problems]
To achieve this object, the present invention is configured as follows. First, the present invention relates to a fire alarm system for monitoring a fire in a protection section by connecting a fire detector installed in a protection section to a detector line drawn from a fire receiving panel, and a sprinkler head disposed in the protection section. , A control valve that controls the supply and stop of fire extinguishing water to the sprinkler head, a flow detection device that detects the flow of fire extinguishing water due to the operation of the sprinkler head, and the opening and closing of the control valve based on the state of the fire signal from the fire receiving board A sprinkler fire extinguishing system including a sprinkler control panel that performs control and starts and stops the supply of fire extinguishing water.
[0009]
In the sprinkler fire extinguishing system, the present invention is characterized in that a control valve opening switch for opening and maintaining the control valve regardless of the presence or absence of a fire signal from the fire alarm system is provided. Here, the control valve opening switch may be shared by a fire determination switch provided on the fire receiving panel. Further, the sprinkler control panel may control the closing of the control valve after a lapse of a predetermined time when the control valve is controlled to be opened by operating the control valve opening switch.
[0010]
Therefore, even if the fire detector does not detect the fire and the water discharge from the sprinkler head activated by the fire is stopped, the resident can operate the emergency water discharge switch provided on the fire receiver installed in the dwelling unit. For example, the same state as when a fire is detected by the fire detector is created in a simulated manner, the control valve is controlled to the open state, and water discharge from the sprinkler head starts.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an explanatory view of a sprinkler fire extinguishing system according to the present invention. In FIG. 1, the sprinkler fire extinguishing equipment of the present invention in this embodiment is installed in an apartment house, and a fire receiving panel 1 which functions as a dwelling unit receiver is provided in the dwelling unit to perform fire monitoring as a dwelling unit as one protective section. And a fire detector 4 is connected to a detector line 3 drawn from the fire receiving board 1 via the repeater 2.
[0012]
A sprinkler head 6 is installed in the dwelling unit to extinguish the fire by using the dwelling unit as one protection section. The sprinkler head is a closed type, and when it receives heat from a fire, the sprinkler head is automatically opened by, for example, melting the metal inside to spray fire extinguishing water.
[0013]
The sprinkler head 6 is connected to a water supply main pipe 8 via a branch pipe 7, and fire extinguishing water is supplied to the sprinkler head 6 via the water supply main pipe 8 and the branch pipe 7. The water supply main pipe 8 is once drawn into a basement of a building or the like, and is connected to a water storage tank 10 via a fire pump 9.
[0014]
Further, a pressure tank 11 is branched and connected to the water supply main pipe 8, and the pressure in the building is maintained at a constant value through the water supply main pipe 8 by the pressure tank 11. The pressure tank 11 is provided with a pressure switch 12. When the sprinkler head 6 is operated and the pressure switch 12 detects that the pressure inside the water supply main pipe 8 has fallen below a predetermined value, the pump control panel 13 controls the motor. By driving the fire extinguishing pump 9, the fire extinguishing pump 9 is operated, and the fire extinguishing water in the water storage tank 10 is continuously supplied under pressure to the water supply main pipe 8.
[0015]
When the fire pump 9 is operating, a pump operation signal is output from the pump control panel 13 to the house receiving panel 15. Further, the pattern of the water supply main pipe 8 is drawn into an elevated water tank 19 installed at a high place such as a vertical or a roof, and the fire water from the elevated water tank 19 always fills the water supply main pipe 8 with fire extinguishing water.
[0016]
A running water detection device 16 and a control valve 18 are provided in the branch pipe 7 branched from the water supply main pipe 8. The control valve 8 controls the supply and stop of fire extinguishing water to the sprinkler head 6 by opening and closing the branch pipe 7, and is constituted by an interlocking valve driven by the control of the sprinkler control panel 5.
[0017]
The control valve 18 is always kept open in the steady monitoring state. For this reason, the fire extinguishing water is supplied to the sprinkler head 6 via the control valve 18 in the steady monitoring state, and is in the same pressurized fire extinguishing water supply state as the sprinkler equipment.
[0018]
A bypass valve 18a is connected in parallel to the control valve 18. When the control valve 18 becomes uncontrollable, the fire extinguishing water can be supplied and stopped by manually opening and closing the bypass valve 18a. The bypass valve 18a is closed in the steady monitoring state. In addition, the bypass valve 18a is provided in the equipment housing box along the corridor outside the dwelling unit together with the control valve 18 and the flowing water detection device 16.
[0019]
The running water detecting device 16 is turned on by opening the valve with running water generated by spraying fire extinguishing water when the sprinkler head 6 is operated by receiving heat from a fire, and outputs the running water detecting signal E1 from the running water detecting device 16 to the sprinkler. Output to control panel 5.
[0020]
An end test valve 27 and an orifice 28 are provided on the end side of the branch pipe 7. By manually opening the end test valve 27, the amount of fire extinguishing water determined by the orifice 28 is caused to flow through the branch pipe 7, and the running water detection device 16 is simulated to perform a test operation of the fire extinguishing pump 9 or a control valve. Inspection control for confirming the opening / closing control of 18 can be performed. This terminal test valve 27 is installed in the house together with the sprinkler control panel 5.
[0021]
The fire signal E2 and the fault signal E5 are supplied to the sprinkler control panel 5 from the fire receiving panel 1 as a notification signal. When the fire detector 4 detects a fire, the fire receiving board 1 receives the alarm current flowing by short-circuiting the sensing line 3 to a low in-beads. The fire receiving board 1 gives a fire alarm, and an outdoor indicator (not shown). , And the information is transmitted from the receiving unit 15 via the repeater 2.
[0022]
Further, the fire receiving panel 1 monitors the disconnection of the sensing line 3, and when detecting the disconnection, transmits a failure signal E5 to the sprinkler control panel 5. To monitor the disconnection, a terminating resistor 25 is connected to the end of the sensing line 3 drawn from the fire receiving panel 1.
[0023]
The sprinkler control panel 5 is provided with an emergency stop switch 23 so that the sprinkler control panel 5 controls the control valve 18 in a closed state in a dwelling unit so that an emergency stop for stopping water discharge can be performed.
[0024]
The control circuit 21 of the sprinkler control panel 5 receives the running water detection signal E1 from the running water detection device 16, the fire detection signal E2 from the fire receiving board 1, and the failure signal E5, and controls the control valve 18 based on these. I do.
[0025]
Here, the control of the control valve 18 by the control circuit 21 provided in the sprinkler control panel is basically as follows.
[0026]
First, in the steady monitoring state, the control valve 18 is opened and the fire extinguishing water is supplied to the sprinkler head 6. When the fire extinguishing water is sprinkled by the operation of the sprinkler head 6 due to a fire, the running water detection signal E1 from the running water detection device 16 is turned on and supplied to the control circuit 21. At this time, the fire detection signal E2 from the fire receiving board 1 is fired. Alternatively, if the failure signal E5 is obtained, the open state of the control valve 18 is maintained.
[0027]
On the other hand, when there is neither the fire signal E2 or the failure signal E5 from the fire receiving board 1 when the flowing water detection signal E1 is turned on, the malfunction of the sprinkler head 6 is considered, so the control valve 18 is controlled to the closed state. Turn off fire water supply.
[0028]
For the control function of the control circuit 21 of the sprinkler control panel 5 in the present invention, the fire receiving panel 1 is provided with an emergency opening switch 32 for forcibly opening and maintaining the control valve 18 to detect the flowing water. The emergency opening switch 32 is turned on in a state where the control valve 18 is controlled to be closed because the running water detection signal E1 from the device 16 is on but the fire signal E2 from the fire receiving panel 1 is not on. Then, a fire signal E2 is simulated and the control valve 18 is controlled to the open state.
[0029]
For this reason, if the fire detector 4 itself fails or the time lag until the alarm is issued due to the remote location of the fire detector 4 is large, the fire activates the sprinkler head 6 to discharge fire-extinguishing water, and the fire signal E2 Is not obtained, even if the sprinkler control panel 5 controls the control valve 18 to the closed state to stop water discharge, the resident who has confirmed the fire has the emergency opening switch 32 of the fire receiving panel 1 installed in the dwelling unit. When the is operated, the sprinkler control panel 5 controls the control valve 18 in the closed state to the open state, so that the sprinkler head activated by the fire can restart the discharge of fire-extinguishing water.
[0030]
FIG. 2 is an explanatory diagram showing details of the fire receiving panel 1 of FIG. 1 together with the sprinkler control panel 5 side. In FIG. 2, the fire receiving board 1 is provided with an alarm receiving section 34 from which the sensing line 3 is drawn out, and a receiving control MPU 36, and for the receiving controlling MPU 36, a fire signal transfer relay 38 and a failure signal transfer. A relay 40 is provided. The fire signal transfer relay 38 has a fire signal transfer contact 38a, which is connected to a transfer signal line 41 drawn from the control circuit 21 of the sprinkler control panel 5.
[0031]
Further, the fault signal transfer relay 40 has a fault signal transfer contact 40a, which is connected to a transfer signal line 42 drawn from the control circuit 21 of the sprinkler control panel 5. Further, a switch contact of the emergency water discharge switch 31 is connected in parallel with the fire signal transfer contact 38a to the transfer signal line 41 drawn from the control circuit 21 of the sprinkler control panel 5.
[0032]
For this reason, when the fire detector 4 fails and the fire cannot be detected, or when there is a long time delay from the occurrence of the fire until the fire detector 4 issues an alarm, the resident is provided with the fire receiver 1. By turning on the emergency water discharge switch 32, the fire signal E1 to the control circuit 21 of the sprinkler control panel 5 can be turned on by the notification signal line 41.
[0033]
Here, in the embodiment of FIG. 2, the fire receiving board 1 is provided with a dedicated emergency water discharge switch 32, but the fire receiving board 1 is provided with a fire confirming switch 33 as shown in FIG. Therefore, the function as the emergency water discharge switch 31 may be used together with the fire determination switch 33 on the side where the emergency water discharge switch 31 is provided.
[0034]
Specifically, when the fire confirming switch 33 receives the alarm signal of the fire detector 4 from the fire receiving panel 1, the fire confirming switch 33 outputs a fire confirming signal to the living room receiving panel 15 after the alarming time has continued for a predetermined time. When the resident turns on the fire confirmation switch 33 before the time reaches the predetermined time, the fire confirmation signal, which is determined to be a fire at that time, is sent to the living room receiving board 15. And an alarm is displayed.
[0035]
The switch contact of the fire determination switch 33 having such a fire determination signal function is used as the switch contact of this circuit, one switch contact is used for fire determination, and the other switch contact is used as the fire receiving board of FIG. As shown in (5), a switch contact that replaces the emergency water discharge switch 32 may be connected in parallel with the fire signal transfer contact 38a for the transfer signal line 41.
[0036]
FIG. 3 is a flowchart showing the control processing of the present invention by the sprinkler control panel of FIGS. 1 and 2. In the flow chart of FIG. 3, the control is performed by checking for the presence of a running water detection signal, a fire signal, a failure signal, a pressure detection signal, and a disconnection detection signal. No signal means that the signal is off.
[0037]
In FIG. 3, the sprinkler control panel 5 checks in step S1 whether there is a running water detection signal E1 from the running water detecting device. Since there is no running water detection signal E1 in the steady monitoring state, the open state of the control valve 18 is maintained in step S2.
[0038]
When a fire occurs in a dwelling unit, the fire signal E2 is obtained first, and then the running water detection signal E1 is obtained. Conversely, the running water detection signal E1 is obtained first, and then the fire signal E2 is generated. There are two cases where it can be obtained. First, the case where the running water detection signal E1 is obtained first and then the fire signal E2 is obtained will be described.
[0039]
If there is no running water detection signal in step S1, the control valve 18 is kept open in step S2, and since the emergency stop switch 30 is off in step S3, the process returns to step S1 and repeats this process.
[0040]
In this state, when the sprinkler head 6 is actuated by the fire and water for fire extinguishing is sprinkled, it is determined in step S1 that a running water detection signal is present. Is maintained in the open state, and the processing of steps S1, S5, S2, and S3 is repeated.
[0041]
On the other hand, if the sprinkler head 6 is activated by a fire for some reason and a running water detection signal is obtained but a fire signal is not obtained, the process proceeds to step S6 via steps S1 and S5, and the output of the fault signal is performed. Check if there is. At this time, if a failure signal is obtained by detecting a failure due to disconnection of the sensor line 3, the process proceeds to step S2, where the control valve 18 is maintained in the open state.
[0042]
If there is no failure signal in step S6, the process proceeds to step S4, in which it is determined that the sprinkler head 6 has malfunctioned without fire, and the control valve 18 is controlled to a closed state.
[0043]
However, if the fire detector 3 has not actually issued a fire alarm due to the disconnection of the sensing line 3 and a failure other than the fire receiving panel 1, the control valve 18 in step S4 is closed regardless of the fire. , The water discharge from the sprinkler head 6 is stopped.
[0044]
In such a situation, in the present invention, when the resident of the dwelling unit presses the emergency water discharge switch 32 provided on the fire receiving panel 1, the fire signal E1 is pseudo-reported to the sprinkler control panel 5, and step S5 is performed. It is determined that there is a fire signal, and the control valve 18 that has been once closed in step S4 is controlled to be open again in step S2, thereby restarting the sprinkler head 6 that has been operated due to the fire by spraying water for fire extinguishing. be able to.
[0045]
The control of the open state of the control valve 18, which was controlled to be closed in the event of a fire because the fire signal E1 is not normally obtained, is performed by operating the emergency water discharge switch 32 newly provided on the fire receiving panel 1 according to the present invention. The water discharge can be resumed by opening the bypass valve provided in parallel with the control valve 18. However, the bypass valve 18a is provided in the dwelling unit together with the control valve 18, the flowing water detecting device 16 and the sprinkler control panel 5, for example, near the entrance door of the dwelling unit. It is located in a box along the corridor and is usually not accessible to residents.
[0046]
According to the present invention, watering from the sprinkler head, which has been stopped easily in the event of a fire simply by operating the emergency water discharge switch 32 of the fire receiving panel 1 provided in the dwelling unit without operating such a bypass valve 18a. Can be resumed.
[0047]
When it is confirmed that the fire has been extinguished due to water spray from the sprinkler head 6 operated by controlling the control valve 18 to the open state, the water spray is stopped by pressing the emergency stop switch 30 provided on the sprinkler control panel 5. Can be. The turning-on of the emergency stop switch 30 is determined in step S4, and the process proceeds to step S5, in which the control valve 18 is controlled to a closed state to stop water sprinkling from the sprinkler head 6.
[0048]
FIG. 4 shows another embodiment of the present invention, in which the present invention is applied to a pre-actuated sprinkler system.
[0049]
In FIG. 4, a pre-operation type running water detection device (scheduled operation valve) 60 installed for each dwelling unit is installed in a branch pipe 7 from a water supply main pipe 8. A primary pipe 59 for receiving the connection of the branch pipe 7 arranged in the horizontal direction is inserted into the main body 91 of the pre-actuated running water detection device 60, and its end is open. The inside of the main body 91 is divided into a priming chamber 93 and a secondary chamber 94 by a clapper 92 serving as a valve body, and the clapper 92 opens and closes an opening of the primary pipe 59.
[0050]
A spring 95, which is an elastic body, is housed in the priming chamber 93, and the spring 95 presses the clapper 92 toward the opening. The primary pipe 59 is filled with pressurized water for fire extinguishing, and the priming chamber 93 is also filled with pressurized water of the same pressure. The pressurized water of the same pressure is applied before and after the clapper 92, and the area difference between the front and rear of the clapper 92 (primary area) Side 1: The priming chamber side 2) and the force of the spring 95 keep the clapper 92 closed.
[0051]
A check valve 96 is connected to the main body 91 in a vertical direction, and the check valve 96 is provided with a clapper 97. The branch pipe 7 to which the sprinkler head 6 is connected is connected to the check valve 96, and a gate valve 98 is provided at a connection portion between the check valve 96 and the branch pipe 7. An air pipe 71 for supplying compressed air is connected to the upper side of the clapper 97 of the check valve 96. The secondary side of the clapper 97 and the branch pipe 80 are filled with compressed air. Since 94 is atmospheric pressure, the clapper 97 is kept closed.
[0052]
The air pipe 71 is provided with a control valve 75, a flow control valve 76 with an orifice mechanism, and a check valve 77. Normally, the flow control valve 76 is in a closed state, but a small diameter hole of about φ2 is opened in the valve body, and compressed air is supplied from the hole. At the time of restoration, the compressed air is quickly supplied into the pipe by opening the flow control valve 76. The drain pipe 99 is connected to a check valve 96, and the drain pipe 99 is provided with a pressure gauge 100, a pressure switch 101, and a system drain valve 102.
[0053]
The pressure switch 101 detects the pressure reduction of the compressed air filled in the secondary side of the check valve 96 and the branch pipe 7, for example, the leakage of the compressed air due to the operation of the sprinkler head 6 or the breakage of the pipe, and generates a pressure drop signal E6. It is sent to a sprinkler control panel (pre-actuation valve control panel) 87.
[0054]
When a parent-child valve is used as the system drain valve 102, a test of flowing water can be performed without flowing pressurized water to the sprinkler head 81. That is, the gate valve 98 is closed, the fire detector 4 is operated, the pre-operation type running water detection device 60 is operated, the fire extinguishing pump 9 shown in FIG. 1 is started, and the flow rate corresponding to one sprinkler head 6 is operated. Test running water.
[0055]
One end of the priming pipe 103 is connected to the priming chamber 93, and the other end is connected to the primary pipe 59. The pressurized water in the primary pipe 59 is supplied to the priming chamber 93 via the normally open priming valve 104, strainer 105, check valve 106, orifice 107, and pressure gauge 108.
[0056]
A starting pipe 109 is connected to the priming chamber 93 side of the priming pipe 103, and a drain pipe is provided via a motor-operated valve (starting valve) 110 that opens and closes the starting pipe 109 in response to an open / close signal from the pre-actuation valve control panel 87. Connected to. The starting pipe 109 is provided with a manual release valve 111 in parallel with the electric valve 110.
[0057]
The opening of the orifice 107 is set so that the amount of drainage of the starting pipe 109 when the motor-operated valve 110 is opened is larger than the amount of inflow from the priming pipe 103 to the priming chamber 93. Therefore, when the electric valve 110 is opened, the pressure in the priming chamber 93 decreases, and when the pressure of the pressurized water in the primary pipe 59 exceeds the force of the spring 95, the clapper 92 opens immediately.
[0058]
When the motor-operated valve 110 is closed, pressurized water from the priming valve 104 and the orifice 107 is gradually accumulated in the priming chamber 93, and has the same pressure as the pressurized water in the primary pipe 59. And the force of the spring 95 causes the clapper 92 to slowly close the opening of the primary pipe 59. The check valve 106 sets only the flow of the pressurized water to the priming chamber 93 and prevents the backflow. The pressure gauge 108 measures the pressure of the pressurized water flowing through the priming pipe 103.
[0059]
One end of the flowing water alarm pipe 112 is connected to the secondary chamber 94 of the main body 91, and the other end is connected to a drain pipe. An auxiliary drain valve 113, a strainer 114, a check valve 115, a pressure switch 116, and an orifice 117 are provided in the flowing water alarm pipe 112. When the clapper 92 is opened, the pressure switch 116 detects that the pressure of the pressurized water flowing into the flowing water alarm pipe 112 has reached a predetermined pressure.
[0060]
That is, the pressure switch 116 has a running water detection function, and outputs a running water alarm signal to the pre-actuation valve control panel 87. The orifice 117 is capable of providing a sufficient flow to turn on the pressure switch 116 instantaneously when the clapper 92 is open, and to provide a sufficient drainage to turn off instantly when the clapper 92 is closed. Is set to a suitable opening.
[0061]
An alarm test valve 119 is provided in a test pipe 118 connecting the flowing water alarm pipe 112 and the priming pipe 103, and the pressure switch 116 is tested by opening the alarm test valve 119.
[0062]
The sprinkler control panel 87 outputs an open signal E7 to the motor-operated valve 110 based on both the fire signal E2 from the fire receiving panel 1 based on the alarm from the fire detector 4 and the pressure drop signal E6 from the pressure switch 101. I have to.
[0063]
In the present invention, for the control function of the sprinkler control panel 87, the fire receiving panel 1 is provided with an emergency opening switch 32 for forcibly opening and maintaining the electric valve 110, and the electric valve 110 is closed. When the emergency release switch 32 is turned on in the state where the control is performed, the fire signal E2 is simulated, and the electric valve 110 is controlled to the open state on condition that the pressure drop detection signal E6 is obtained. Like that.
[0064]
Therefore, if the fire detector 4 itself fails or the fire detector 4 is located far away and the time delay before the alarm is issued is large, the sprinkler head 6 is activated by the fire and fire extinguishing water is discharged, and the pressure drop is detected. Even when the signal E6 is obtained, the fire signal E2 is not obtained, so that the sprinkler control panel 87 closes the electric valve 110, closes the clapper 92 of the main body 91 of the pre-actuated flow detection device 60, and stops water discharge. Even if the fire is confirmed, when the resident who confirms the fire operates the emergency release switch 32 of the fire receiving panel 1 installed in the dwelling unit, the sprinkler control panel 87 controls the motorized valve 110 in the closed state to the open state, By opening the clapper 92 of the main body 91, fire extinguishing water can be discharged from the sprinkler head 6 activated by the fire.
[0065]
Further, as another embodiment of the present invention, in the case of a sprinkler system having the same equipment configuration as that of FIG. 1, but the control valve 18 is normally closed, for example, the control valve is set by setting a setting switch provided on the fire receiving panel 1. By controlling the opening of 18, the branch pipe 7 may be filled with fire-extinguishing water, and a state may be set such that the sprinkler head 7 discharges water as soon as it operates.
[0066]
In the above embodiment, the sprinkler fire extinguishing system is taken as an example, in which each dwelling unit of a condominium is used as a protection section. The present invention can also be applied to building facilities that are provided in a centralized manner.
[0067]
In addition, as a whole configuration of the sprinkler control equipment, it suffices if the flowing water detecting device 16 and the control valve 18 are provided in a pipe for the sprinkler head 6, and other configurations may be different. For example, the position of the flowing water detecting device 16 and the control valve 18 may be such that the control valve 18 is on the fire extinguishing pump 10 side and the flowing water detecting device 16 is provided on the sprinkler head 6 side.
[0068]
Further, the control valve is not limited to the motor-operated valve, but may be a valve having a valve structure such as an electromagnetic valve that can open and close a pipe passage. Further, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited by the numerical values shown in the above embodiments.
[0069]
Further, the sprinkler control panel 5 may not be provided for each dwelling unit, and a plurality of protection sections may be grouped into one group and controlled.
[0070]
Further, the fire receiving panel may be provided with not only the emergency water discharge switch for opening the control valve but also a water discharge stop switch, and the switch 32 may be turned on / off. The switches for water discharge and stop may be performed by one switch. The signal for emergency water discharge sent from the fire receiving panel to the sprinkler control panel is not limited to the fire signal, and may be a signal dedicated to emergency water discharge.
[0071]
In this embodiment, the fire receiving panel is provided with an emergency water discharge switch. However, the fire receiving panel may also be provided in a living room receiver, and an emergency water discharge signal is transmitted to a sprinkler control panel corresponding to the dwelling unit that has transmitted the fire signal. The opening control of the valve may be performed.
[0072]
Further, the sprinkler control panel may be provided with a water discharge switch. It may be separately provided at a predetermined place outside the dwelling unit. In this way, emergency water discharge can be performed from the outside of the fire dwelling unit, and when the dwelling unit is away or when the fire flame cannot reach the fire receiving panel inside the dwelling unit, water discharge control can be performed from the outside. it can.
[0073]
Further, in the present embodiment, when the control valve in the closed state is controlled to be opened by the operation of the emergency water discharge switch, the switch may be operated by mischief or the like. The water discharge may be stopped by controlling. In particular, in the sprinkler equipment of the second and third embodiments where the control valve is normally closed, if the emergency water discharge switch is operated by mischief, the control valve is opened and the function of preventing water damage is invalidated. I will. Therefore, by performing the closing control and returning to the initial state after the elapse of a predetermined time after the opening control, it is possible to prevent the water damage prevention function from being stopped due to mischief.
[0074]
【The invention's effect】
As described above, according to the sprinkler fire extinguisher of the present invention, the fire detector is out of order, or even if the fire detector is normal, the fire place is far away and there is a time delay until the fire is reported. In this case, even if water discharge from the sprinkler head that was activated by a fire is stopped, watering from the sprinkler head can be started by a simple operation of pressing the emergency water discharge switch installed in the dwelling unit, and the sprinkler fire extinguishing The reliability and operability of the equipment can be greatly improved.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of the equipment configuration of the present invention.
FIG. 2 is an explanatory diagram showing details of the fire receiving panel of FIG. 1 together with a sprinkler control panel.
FIG. 3 is a flowchart showing control processing of the present invention by the sprinkler control panel of FIG. 1;
FIG. 4 is an explanatory view of an embodiment in which the present invention is applied to a pre-actuated sprinkler system.
[Explanation of symbols]
1: Fire receiver (Dwelling unit receiver)
2: Repeater
3: Sensor line
4: Fire detector
5,87: Sprinkler control panel
6: Closed sprinkler head
7: Branch pipe
8: Water supply main
9: Fire pump
10: Water source tank
11: Air tank
12: Pressure switch
13: Pump control panel
14: Motor
15: Receiving board of residence ridge
16: Running water detector
18: Control valve
19: elevated water tank
20: Pressure switch
21: Control circuit
25: Terminating resistor
26: Simulated fault switch
27: Terminal test valve
28: Orifice
30: Emergency stop switch
32: Emergency water discharge switch
33: Fire confirmation switch
34: alarm receiving unit
36: MPU for reception control
38: Fire signal relay
38a: Fire signal transfer contact
40: Fault signal relay
40a: fault signal transfer contact
110: Electric valve

Claims (3)

A fire alarm system for connecting a fire detector installed in the protection section to a detector line drawn from a fire receiving panel to monitor a fire in the protection section,
A sprinkler head located in the protective compartment;
A control valve for controlling the supply and stop of the fire extinguishing water to the sprinkler head,
A running water detection device that detects running water of fire extinguishing water by operation of the sprinkler head,
A sprinkler control panel that controls the opening and closing of the control valve based on the state of the fire signal from the fire receiving panel, and starts and stops the supply of fire extinguishing water,
In sprinkler fire extinguishing equipment equipped with
A sprinkler fire extinguishing system comprising a control valve opening switch for opening and maintaining the control valve regardless of a fire signal from the fire alarm system. 2. A sprinkler fire extinguishing system according to claim 1, wherein said control valve opening switch is also used as a fire confirming switch provided on said fire receiving panel. 2. The sprinkler fire extinguishing system according to claim 1, wherein the sprinkler control panel controls the closing of the control valve after a predetermined time has passed when the control valve is controlled to be opened by operating the control valve opening switch. Fire extinguishing equipment.

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