JP2002355331A - Sprinkler extinguishing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sprinkler extinguishing equipment which can eliminate the wiring work for connecting operation sensors to state monitoring discs in a type of the sprinkler extinguishing equipment which enables monitoring of operation signals from sprinkler heads with the state monitoring discs. SOLUTION: In the sprinkler extinguishing equipment which is equipped with the operation sensor for detecting operation signals of the sprinkler heads and the state monitoring disc connected to the operation sensor to monitor the operations of the sprinkler heads, a wireless transmitter is provided as an address signal transmission means of the operated sprinkler heads at a pipe or the sprinkler heads or near the sprinkler heads.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a sprinkler fire extinguishing system.

[0002]

2. Description of the Related Art Sprinkler fire extinguishing systems are installed in office buildings, hotels, supermarkets, department stores, and the like. However, such buildings are large in size, and in the event of a fire, the location of the fire is immediately determined. In some cases, the state of the sprinkler fire extinguishing equipment is monitored in a caretaker's office or the like, and the pressure value on the secondary side of each section is monitored.

[0003] Specifically, a pressure switch is provided in the secondary pipe of each section, and when the sprinkler head operates for some reason, the pressure of the secondary pipe decreases.
The decrease in pressure is detected by a pressure switch, and a condition monitoring panel installed in a caretaker room informs a person that the sprinkler head has been activated, that is, that a fire has occurred.

[0004]

However, the monitoring means of the above-mentioned sprinkler fire extinguishing equipment can monitor only in each section and can grasp a rough position. However, where is the fire occurring and how much is spreading? However, there was a problem that it was not possible to judge it without actually going to the fire scene.

[0005] In addition to the above monitoring means, it is possible to install an operation sensor for each sprinkler head and connect it to a state monitoring panel to monitor the state of each sprinkler head. Further, since there is a time and effort for wiring work for transmitting a signal from the operation sensor to the state monitoring panel, it is difficult to implement the cost as the facility becomes larger.

Accordingly, the present invention provides a sprinkler fire extinguishing system capable of monitoring an operation signal from a sprinkler head by a state monitoring panel, and providing a sprinkler fire extinguishing apparatus capable of omitting wiring work for connecting an operation sensor and a state monitoring panel. It is an object.

[0007]

In order to achieve the above object, according to the present invention, an operation sensor for detecting an operation signal of a sprinkler head, and an operation sensor connected to the operation sensor for monitoring operation of the sprinkler head. In a sprinkler fire extinguishing system equipped with a state monitoring panel, a wireless transmitter is provided as a means for transmitting an address signal of an activated sprinkler head near a pipe or a sprinkler head or a sprinkler head.

[0008] According to a second aspect of the present invention, the address signal transmitting means of the first aspect is provided in a solenoid valve, a motor-operated valve, and various sensors installed in a sprinkler fire extinguishing facility.

According to a third aspect of the present invention, the address signal transmitting means of the first aspect is provided with an electric supply means.

[0010] According to a fourth aspect of the present invention, a battery is incorporated as the electricity supply means of the third aspect.

[0011] The invention according to claim 5 is the invention as set forth in claims 1 to 5 above.
4. The sprinkler fire extinguisher described in 4, wherein a repeater capable of receiving an address signal from each device is provided for each area within a radio wave range of the address signal transmitting means.

[0012] The invention according to claim 6 is the invention as set forth in claim 1 to claim 1.
5. The sprinkler fire extinguisher according to 5, wherein a control panel for controlling the opening and closing of a valve provided on the pipe based on the address signal is provided.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a system schematic diagram of the first embodiment, and FIG. 2 is a system schematic diagram of the second embodiment.

The sprinkler fire extinguishing system shown in FIG.
0, a primary pipe 20, a secondary pipe 30, a flowing water detecting device 40, a sprinkler head 50, a repeater 60, and a monitoring panel 70.

[0015] In the water source 10, a fire extinguishing liquid is stored in a water tank,
When the sprinkler head 50 is operated, the pump P is activated to pump up the fire extinguishing liquid from the water source 10, and the fire extinguishing liquid is supplied to the sprinkler head 50 through the piping, so that the fire extinguishing liquid can be continuously sprayed.

The primary side pipe 20, the secondary side pipe 30, and the flowing water detecting device 40 are installed between the water source 10 and the sprinkler head 50, and the primary side piping 20 and the secondary side piping are
30 are divided. The running water detection device 40 is always closed and is opened when the sprinkler head 50 operates,
The fire extinguishing liquid supplied from the water source 10 can be supplied from the primary pipe 20 to the sprinkler head 50 installed in the secondary pipe 30.

[0017] The sprinkler head 50 is opened by the heat of the fire and sprays a fire extinguishing liquid to extinguish the fire. In order to detect the operation of the sprinkler head 50, it is necessary to install an operation sensor.

An example of the operation sensor is disclosed in JP-A-3-254764
And JP-A-3-185598 and JP-A-2-209164. Of course, it is also possible to use an operation sensor other than these.

A wireless transmitter 51 is provided near the sprinkler head 50 and the operation sensor, and is connected to an output port of the operation sensor. Upon receiving the operation signal from the operation sensor, the wireless transmitter 51 transmits the operation signal to the repeater 60 by radio waves. For example, it is possible to use a keyless entry technology used for an automobile door lock.

The operation sensor and the radio transmitter 51 may be formed integrally, or may be incorporated in the sprinkler head. Furthermore, it is also possible to provide a plurality of input ports in one wireless transmitter 51 and connect and use the operation sensors of a plurality of sprinkler heads.

It is also possible to install the above-mentioned wireless transmitter 51 in the fire detector, and a combination of the operation signal of the sprinkler head and the ON / OFF of the operation signal of the fire detector, etc., causes the sprinkler fire extinguishing equipment piping. It is also possible to control the opening and closing of the valve installed in the second embodiment, which will be described in detail in the second and subsequent embodiments.

The repeater 60 is capable of receiving a signal from the wireless transmitter 51 and has a function of transferring the received signal to the monitoring panel 70.
The repeater 60 and the monitoring panel 70 may be connected by an electric wire,
The signal may be transmitted wirelessly. If the size of the sprinkler fire extinguishing equipment is large, repeater 60
It is necessary to provide a plurality of them at intervals smaller than the reach of the radio wave.

The monitoring panel 70 outputs a signal from the radio transmitter 51 so that it can be understood by a human, and informs a human of the position and the number of the activated sprinkler heads by display, voice, and the like.

Next, the operation of the first embodiment will be described with reference to FIG. When a fire occurs in the building, the sprinkler head 50 near the fire source operates. At the same time, the operation sensor installed on the sprinkler head 50 is turned on, and the wireless transmitter 51 connected to the operation sensor transmits the operation signal by radio waves.

[0025] The signal transmitted from the wireless transmitter 51 is received by the repeater 60, and the repeater 60 transmits the received signal to the monitoring panel 70 to inform the person of the location and the number of the sprinkler heads that have been operated. Based on this information, security guards can quickly evacuate and guide people in the building.

The repeater 60 opens the flowing water detecting device 40 to which the sprinkler head 50 operated by the received signal is connected, and starts the pump P to supply the fire extinguishing liquid from the water source 10 to the fire source. Alternatively, the opening of the flowing water detection device 40 and the activation of the pump P may be performed from the monitoring panel 70.

Further, it is also possible to control the number of rotations of the pump P by controlling the number of operating sprinkler heads 50, thereby controlling the amount of water supplied to the secondary pipe.

Next, a second embodiment will be described. Figure 2 is the first
The fire detector S in which the wireless transmitter 51 is installed in the system of the embodiment, and the branch pipe 31 following the sprinkler head 50
A control valve 32 is installed between the fuel cell system and the secondary pipe 30, and a control panel for controlling a running water detection device 40 installed in the sprinkler fire extinguishing equipment and an opening / closing signal of each valve.
Consists of 80.

The control panel 80 receives an operation signal of the fire detector S and an operation signal of the sprinkler head 50 from the repeater 60 or the monitoring panel 70, and issues an open / close signal of the flowing water detection device 40 and each valve. . The function of the control panel 80 may be provided in the repeater 60 or the monitoring panel 70.

From the second embodiment, the control of the opening and closing of the flowing water detection device 40 installed in the sprinkler fire extinguishing equipment and the valves according to the state of the operation signal of the fire detector S and the operation signal of the sprinkler head 50 will be described.

In the system of the second embodiment, both the operation signal of the fire detector S and the operation signal of the sprinkler head 50 are O.
When it becomes N, the running water detection device 40 is opened. At that time, the control valve 32 is always opened.

[0032] Alternatively, as a third embodiment, the flowing water detection device 40 is kept open and the control valve 32 is filled with water up to the primary side.
It is also possible to open the control valve 32 when both the operation signal of the fire detector S and the operation signal of the sprinkler head 50 are turned on.

As a fourth embodiment, in the alert state, the inside of the secondary pipe 30 is not filled with water, the flowing water detecting device 40 is closed, and the control valve 32 is opened. Further, the operating temperature of the fire detector S is set lower than the operating temperature of the sprinkler head 50.

[0034] When a fire occurs and the running water detector 40 is opened according to the operation signal of the fire detector 50, the fire extinguishing liquid is filled in the secondary pipe 30 and immediately after the sprinkler head 50 is operated, The fire extinguishing liquid can be sprayed from the sprinkler head 50.

If the sprinkler head 50 does not operate even after several minutes, the water flow detecting device 40 is closed and the secondary side piping 30
The drain valve 33 provided at the end of the pipe is opened, and the fire extinguishing liquid in the secondary pipe 30 is drained. The opening and closing of the drain valve 33 can also be performed by a signal from the repeater 60 or the control panel 80.

In the fourth embodiment, when the sprinkler head 50 malfunctions, the secondary pipe 30 is not filled with water, so that water damage does not occur.

[0037]

As described above, according to the present invention, the signal of the operation sensor is transmitted by the radio transmitter,
Wiring work for connecting the operation sensor and the condition monitoring panel is omitted, and the address and number of the activated sprinkler heads can be grasped, so that the location and scale of the fire can be easily specified. Thus, the present invention has a remarkable effect as the scale of the building or equipment increases.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a system according to a first embodiment.

FIG. 2 is a schematic diagram of a system after the second embodiment.

[Explanation of symbols]

 10 Water source 20 Primary pipe 30 Secondary pipe 32 Control valve 33 Drain valve 40 Flowing water detector 50 Sprinkler head 51 Wireless transmitter 60 Repeater 70 Monitoring panel 80 Control panel P pump S Sensor

Claims (6)

[Claims] 1. A sprinkler head or sprinkler head in a sprinkler fire extinguishing system having an operation sensor for detecting an operation signal of a sprinkler head and a condition monitoring panel connected to the operation sensor and monitoring operation of the sprinkler head. A sprinkler fire extinguishing system characterized in that a radio transmitter is provided as an address signal transmitting means for an activated sprinkler head near the sprinkler head. 2. A fire detector installed in a sprinkler fire extinguishing system, wherein the address signal transmitting means according to claim 1 is provided.
Sprinkler fire extinguishing equipment characterized by being installed in pressure switches, various sensors and equipment. 3. A sprinkler fire extinguishing facility, wherein the address signal transmitting means according to claim 1 is provided with an electric supply means. 4. A sprinkler fire extinguishing system as set forth in claim 3, wherein a battery is built in as the electricity supply means. 5. The sprinkler fire extinguisher according to claim 1, wherein a repeater capable of receiving an address signal from each device is provided for each of the address signal transmitting means within a range where radio waves can reach. Sprinkler fire extinguishing equipment characterized by the following. 6. The sprinkler fire extinguisher according to claim 1, further comprising a control panel for controlling opening and closing of a valve provided on the pipe based on the address signal. Fire extinguishing equipment.