JPH06254176A - Preoperation type sprinkler extinguishing equipment - Google Patents

Abstract

PURPOSE:To easily judge the situation of a fire, existence of a fire, etc., only through the hearing of an alarm by allowing the transmission of the alarm different from the alarm of a fire sensor when a sprinkler head operates. CONSTITUTION:A fire sensor 10 is installed in the vicinity of a sprinkler head 7 arranged on the ceiling in each room. The fire sensor 10 is electrically connected to a control panel 9. In the control panel 9, an alarm device 11 which generates two kinds of alarms is built in. In other words, the alarm device generates an alarm when receives a signal from the fire sensor 10, while, generates an another signal when receives the signal informing about the operation of the sprinkler head 7. Accordingly, the situation of the fire can be judged only through the hearing of the alarm.

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 facility for automatically extinguishing a fire with a fire extinguishing liquid when a fire occurs
In particular, it relates to a pre-actuated sprinkler fire extinguisher equipped with a sprinkler head and a fire detector.

[0002]

2. Description of the Related Art In a sprinkler fire extinguisher equipped with only a sprinkler head, the sprinkler head is subjected to an external impact, for example, a person with a long object walks under the sprinkler head, and the long object hits the sprinkler head. Or, when a child plays ball under the sprinkler head and the ball hits the sprinkler head, the disassembled part that held the valve body of the sprinkler head is disassembled by this impact and the valve body is opened to release the sprinkler. The fire extinguisher was sometimes sprayed from the head. This is a water damage accident in which the fire extinguishing liquid is sprayed even though it is not a fire, and the expensive fire extinguishing liquid wets expensive furniture, rugs, office machines, or important documents.

In order to prevent water damage accidents due to such external impacts, pre-operated sprinkler fire extinguishing equipment has recently come to be widely used.

The pre-operation type sprinkler fire extinguishing system is a system in which a fire detector such as a smoke detector or a heat detector is installed near the sprinkler head and both the fire detector and the sprinkler head are activated. Only, the fire extinguishing liquid is sprayed from the sprinkler head. That is, in the pre-operation type sprinkler fire extinguishing equipment, even if only the sprinkler head is actuated by the external impact of the sprinkler head, the extinguishing liquid is not sent to the sprinkler head.

On the contrary, even if a fire detector such as a smoke detector senses indoor smoke or a large amount of smoke in the kitchen and operates, the fire extinguishing liquid is not sprayed from the sprinkler head. There is.

As described above, the pre-operation type sprinkler fire extinguishing system is excellent in safety that the fire extinguishing liquid is not sprayed unless a fire sensor actually occurs and the sprinkler head operates.

By the way, in general, when a fire occurs, even if a sprinkler head is installed, the fire department is notified as soon as possible to extinguish the fire not only with the sprinkler head but also with the fire engine, and to take out and evacuate important documents. It is necessary to take measures such as. Therefore, in the pre-operation type sprinkler fire extinguishing equipment, when the sprinkler head and the fire detector are activated, the signal is sent to the control panel, and the control panel notifies the necessary place with an alarm such as a bell or a siren. As shown in FIG. 6, the conventional warning that can be placed in the pre-actuated sprinkler fire extinguishing equipment is that the same warning is continuously issued with a constant sound even if either the sprinkler head or the fire detector is activated.

[0008]

The fire detector and the sprinkler head installed in the pre-actuated sprinkler fire extinguishing system are more sensitive to the fire detector than the sprinkler head. This is because when a fire actually occurs, smoke and heat at the beginning of the fire are detected by the fire detector, and the signal is sent to the control panel, and from the control panel, the water source valve of the sprinkler head is opened and the water source pump is pumped. Prepare to send the fire extinguishing liquid to the pipe to which the sprinkler head is connected by activating. When the sprinkler head operates a little later than the fire detector, the fire extinguishing liquid has already been sent into the pipes or pressure has been applied to the fire extinguishing liquid. Fire extinguishing liquid is sprayed immediately from.

Even in the conventional pre-actuated sprinkler fire extinguishing equipment, an alarm was naturally issued when a fire occurred, but since this alarm is a single type of sound, when the alarm sounds, only the fire detector operates. It was not possible to judge from this alarm alone, whether it was the initial stage of the fire, or whether the fire was a little bigger and the sprinkler head was operating. In other words, I could not distinguish whether I could take out important documents when the alarm was sounding, or whether I had to evacuate because of the fire.

The present invention has been made in view of the drawbacks of the conventional pre-operated sprinkler fire extinguishing equipment, and a pre-operated sprinkler fire extinguishing equipment that can easily determine the fire situation, the presence or absence of a fire, etc. by listening to an alarm. To provide.

[0011]

The feature of the present invention resides in that a sprinkler head and a fire detector are installed, and when both of them operate, a pre-operation type sprinkler fire extinguishing system in which a fire extinguishing liquid is sprayed from the sprinkler head. In the above, there is a pre-actuated sprinkler fire extinguishing system which issues an alarm when the fire detector operates and issues an alarm different from the fire detector when the sprinkler head operates.

According to the present invention, in order to distinguish between an alarm issued by a fire detector and an alarm issued by a sprinkler head, one is an intermittent alarm and the other is a continuous alarm, or one is a low tone alarm and the other is an alarm. There are means for making a high-pitched alarm, changing the tone color, making voices of different contents, or combining these.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a piping and electric system diagram of a general household in which the pre-operated sprinkler fire extinguishing equipment of the present invention is installed.
It uses tap water as a fire extinguishing solution.

The lead-in pipe 1 of the water supply is a dead water countermeasure joint 2
Is branched into a water supply pipe 3 and a fire extinguishing pipe 4. The dead water countermeasure joint prevents water from stagnating and corroding or rusting at the connecting portion when a pipe other than the water supply pipe is connected to the water supply pipe. (Reference: Jitsuko Sho 56-18126)

The fire extinguishing pipe 3 is piped through the electric valve 5 and the check valve 6 in the ceiling and is connected to the sprinkler heads 7 ... Installed in each room. The sprinkler head installed here has a structure that can detect the discharge of water, and when it detects the discharge of water, it sends an electrical signal to the control panel described later. As shown in Japanese Patent Laid-Open No. 3-41974, a pair of electrodes are installed in the vicinity of the sprinkler head, and the water is wet between the electrodes when water is discharged. It energizes and emits a signal.

A test valve 8 is installed at the end of the fire extinguishing pipe 4. The test valve is to check whether or not the control panel can reliably give an alarm to the sprinkler head by discharging water from the test valve.

The motor-operated valve 5 is adapted to open and close according to a command from the control panel 9. The motor-operated valve is normally closed, and the fire extinguishing pipe 4 after the motor-operated valve is not filled with water.

A fire detector 10 is installed near the sprinkler head installed on the ceiling of each room. The fire detector may be installed once for multiple sprinkler heads. Each of the fire detectors 10 has a control panel 9
Is electrically connected to.

The control panel 9 is adapted to display the activated fire detector. Therefore, if you look at the control panel when the alarm sounds, you can see in which room the fire detector is operating. Further, the control panel 9 has a built-in alarm device 11 for issuing two kinds of alarms. In other words, this alarm device issues an alarm when it receives a signal from the fire detector 10, and when it receives a signal that the sprinkler head is activated next, it issues an alarm different from when the fire detector is activated. . The alarm device can be installed separately from the control panel instead of being built in the control panel.

The following is an example of the combination of the alarm when the fire detector is activated and the alarm when the sprinkler head is activated. ○ Discontinuity / continuous sound: Intermittent sound when fire detector is activated, continuous sound when sprinkler head is activated (Fig. 2) ○ Volume: Appropriate volume when fire detector is activated, louder sound when sprinkler head is activated (Fig. 3) ) Sound: Low sound when the fire detector is activated, high sound when the sprinkler head is activated (Fig. 4) ○ Voice: "Fire detector has activated" when a fire has occurred, "Fire has occurred and refuge has occurred when the sprinkler head has activated. Please "voice (Fig. 5)

In the present invention, since it is only necessary to distinguish between the alarm when the fire detector is activated and the alarm when the sprinkler head is activated, any combination of alarms other than the above combination of alarms may be used. Further, the alarm sound when the fire detector is activated and the alarm sound when the sprinkler head is activated may not be overlapped, or may be emitted so long as they can be clearly distinguished.

Here, the operation of the domestic pre-operation type sprinkler fire extinguishing equipment adopting the present invention will be described.

For example, if a fire occurs in bathroom B,
First, the fire detector 7 installed on the ceiling of the bathroom detects this and sends an electric signal to the control panel 9 of the kitchen K. The control panel 9 emits an intermittent sound as shown in FIG. 2 by the signal from the fire detector. Further, the control panel turns on the indicator lamp in the bathroom by the signal from the fire detector and sends a signal to the electric valve 5 to open the electric valve. At this time, since the inside of the fire extinguishing pipe 4 is in a sealed state, even if the motor-operated valve 5 is opened, the water only flows into the fire extinguishing pipe 4 a little and does not reach the sprinkler head connecting portion. Then, when the fire becomes a little bigger and the sprinkler head 7 in the bathroom operates, the air in the fire extinguishing pipe 4 escapes from the operated sprinkler head, so that the water in the intake pipe 1 flows into the fire extinguishing pipe. The water flowing into the fire extinguishing pipe is sprayed after the air has escaped from the activated sprinkler head to extinguish the fire.

When water is sprayed from the activated sprinkler head, a water discharge detection device installed in the sprinkler head detects it and sends a signal to the control device 9. Then, the control panel issues a continuous alarm different from the alarm when the fire detector is activated by the signal from the sprinkler head. The person who hears this alert knows that the sprinkler head has been activated in the bathroom.

In a house equipped with the pre-actuated sprinkler fire extinguishing system of the present invention, when a large amount of cigarette smoke is generated and only the fire detector is activated, only the fire detector activation alarm continues to sound from the control panel. Therefore, the person who hears it can go to the scene and deal with it without panic.

Further, in a house equipped with the pre-actuated sprinkler fire extinguishing equipment of the present invention, even if the sprinkler head is damaged by external impact, the motor-operated valve does not open.
Water does not flow into the fire extinguishing pipe and is not sprayed from the sprinkler head.

In the embodiment, the pre-operation type sprinkler fire extinguishing equipment for home use has been described, but it goes without saying that the present invention can also be applied to the pre-operation type sprinkler fire extinguishing equipment installed in a general high-rise building.

[0028]

As described above, in the pre-actuated sprinkler fire extinguishing system of the present invention, the alarm sound when the fire detector is activated and the alarm sound when the sprinkler head is activated are different. The situation of the fire can be judged, and the important documents can be taken out without any hassle, or the person can immediately evacuate and let the sprinkler head extinguish the fire.

[Brief description of drawings]

FIG. 1 is a piping system diagram and an electrical system diagram of a general home in which a pre-operation type sprinkler fire extinguishing facility of the present invention is installed.

FIG. 2 is an explanatory diagram of disconnection / continuous sound in the embodiment of the warning sound in the pre-operation type sprinkler fire extinguishing equipment of the present invention.

FIG. 3 is an explanatory diagram of a difference in sound volume in an example of an alarm sound in the pre-operation type sprinkler fire extinguishing equipment of the present invention.

FIG. 4 is an explanatory diagram showing a difference in tone color in the embodiment of the warning sound in the pre-operation type sprinkler fire extinguishing equipment of the present invention.

FIG. 5 is an explanatory diagram showing a difference in sound in the embodiment of the warning sound in the pre-operation type sprinkler fire extinguishing equipment of the present invention.

FIG. 6 is a diagram illustrating a continuous constant sound as an alarm sound in a conventional pre-action type sprinkler fire extinguishing equipment.

[Explanation of symbols]

 1 Intake pipe 2 Dead water countermeasure joint 3 Water supply pipe 4 Fire extinguishing pipe 5 Motorized valve 6 Check valve 7 Sprinkler head 8 Test valve 9 Control panel 10 Fire detector 11 Alarm device

Claims (2)

[Claims] 1. A sprinkler head and a fire detector are installed, and in a pre-actuated sprinkler fire extinguishing facility in which a fire extinguishing liquid is sprayed from the sprinkler head when both of them are activated, an alarm is issued when the fire detector is activated. In addition, the pre-activated sprinkler fire extinguishing equipment is characterized in that when the sprinkler head is activated, an alarm different from the fire detector is emitted. 2. A pre-actuated sprinkler fire extinguishing facility, wherein the two types of alarms are disconnection / continuous sound, volume, tone color, voice difference, or a combination thereof.