JPH0654924A - Automatic flame detecting/extinguishing device - Google Patents

Abstract

PURPOSE:To provide an automatic flame detecting/distinguishing device capable of surely detecting the origin of a fire (flame) at an early stage, capable of surely extinguishing it in a short time with the minimum quantity of water flow, and capable of suppressing the damage by the water spray. CONSTITUTION:This automatic flame detecting/extinguishing device is provided with a flame sensor 1, an infrared sensor 3 oscillated to probe a flame 2 and directed to the flame 2, and a water spray nozzle 4 directed to the flame 2 together with the infrared sensor 3 and spraying water to the flame 2, and water is sprayed from the water spray nozzle 4 only when both the infrared sensor 3 and the flame sensor 1 detect the flame 2. The water spray is automatically stopped when both or one of the sensors 1, 3 senses no infrared ray of the flame 2 after the flame 2 is extinguished. Two or more water spray systems feeding water to the water spray nozzles 4 are provided, and water is sprayed only from the water spray nozzle 4 of the water spray system detecting the flame 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention automatically detects and automatically detects a fire (flame) generated in a large building such as a department store, a hotel, a public facility, an apartment house, or a building such as a general house. The present invention relates to an automatic flame detection and extinguishing device capable of extinguishing the flame by spraying water.

[0002]

2. Description of the Related Art Conventionally, there have been fire alarms for detecting and notifying the occurrence of fire and smoke detectors for detecting and notifying the occurrence of smoke as disaster prevention equipment in buildings. There was also a sprinkler-type fire extinguishing facility that automatically extinguishes water by discharging water when a fire alarm detects a fire.

[0003]

However, in the conventional sprinkler type fire extinguishing equipment, water is discharged in a shower-like manner in the entire room regardless of where the fire source is.
Fire extinguishing efficiency is poor. Further, since water is discharged to a place where it is not necessary to extinguish a fire, not only is the water wasted, but there is also a drawback that an extra place is wetted and damaged. Further, since the water discharge continues until the water discharge is stopped manually, there is a problem that if the stop is delayed, the room will be flooded and the damage due to the water discharge will increase.

[0004]

It is an object of the present invention to reliably detect not only fire flames but also small flames before a fire, such as match flames and writer flames, and minimize those flames. Another object of the present invention is to provide an automatic flame detection and extinguishing system capable of efficiently and reliably extinguishing a fire in a short time with the amount of water discharged, and minimizing damage caused by water discharge.

[0005]

An automatic flame detection and extinguishing system according to claim 1 of the present invention is based on a flame sensor 1 and a detection signal from the flame sensor 1 in a room as shown in FIG. Equipped with an infrared sensor 3 which is actuated to face the flame 2 and a water discharge nozzle 4 which is attached to the infrared sensor 3 and discharges water to the flame 2 detected by the infrared sensor 3. Is. The automatic flame detection and extinguishing system according to claim 2 of the present invention is
2. The automatic flame detection and extinguishing system according to claim 1, wherein the water is discharged from the water discharge nozzle 4 only when the infrared sensor 3 detects the flame 2 and the detection signal from the flame sensor 1 continues for a predetermined time. is there. The automatic flame detection and extinguishing apparatus according to claim 3 of the present invention is the automatic flame detection and extinguishing apparatus according to claim 1 or 2, wherein the flame 2 is generated by discharging water from the water discharge nozzle 4.
When the fire of the fire extinguishes and either or both of the infrared sensor 3 and the flame sensor 1 no longer sense the infrared rays of the flame 2, the water discharge nozzle 4
It is designed to stop the water discharge from. The automatic flame detection and extinguishing apparatus according to claim 4 of the present invention is the automatic flame detection and extinguishing apparatus according to claim 1, 2 or 3, wherein two or more water supply pipes 10 for supplying water to the water discharge nozzle 4 are provided. The flame sensor 1, the infrared sensor 3, and the water discharge nozzle 4 are provided for each water supply pipe 10.

[0006]

In the automatic flame detection and extinguishing system of the present invention, the flame detector 1
When the flame 2 of the fire source is detected by, the detection signal is sent to the controller 6, and the controller 6 automatically turns on the power of the infrared sensor 3. As a result, the infrared sensor 3 shakes its head in all directions of 360 degrees to detect the infrared rays contained in the flame 2, and stops at the position where the flame 2 is detected. At this time, the water discharge nozzle 4 attached to the infrared sensor 3 also faces the flame 2. Furthermore, when the infrared sensor 3 detects the flame 2,
When the detection signal is continuously output from the flame detector 1, the electromagnetic valve 7 attached to the water supply pipe 10 opens, and at the same time, the plunger pump 9 operates to supply the water from the water storage tank 8 to the water supply pipe 10. Water is discharged toward the flame 2 from the water discharge nozzle 4 that faces the flame 2. In this case, claim 2
In the invention, since the water is discharged only when the detection signals are output from both the flame sensor 1 and the infrared sensor 3,
When only one of the flame detector 1 or the infrared detector 3 operates, for example, when the flame detector 1 or the infrared detector 3 malfunctions, or when a lighter ignites for smoking, water is sprayed. There is nothing to do. According to the invention of claim 3,
When the flame 2 is extinguished and one or both of the flame sensor 1 and the infrared sensor 3 no longer sense the flame 2, the electromagnetic valve 7 is automatically closed via the controller 6 and the water from the water discharge nozzle 4 is discharged. Water discharge is automatically stopped. In the invention of claim 4, two or more water supply pipes 10 for supplying water to the water discharge nozzle 4 are provided, and since water is discharged only from the water supply pipe 10 that senses the flame 2, it is possible that an extra portion gets wet with water. No water is wasted.

[0007]

FIG. 1 shows an embodiment of an automatic flame detection and extinguishing system according to the present invention. Reference numeral 1 in FIG. 1 is a flame detector, which is installed on a ceiling or a wall in a room to detect the occurrence of a disaster and outputs the detection signal to the controller 6. It is desirable that the flame detector 1 is a smoke detector combined type equipped with a smoke detector, since a flame is rarely generated immediately at the beginning of a fire and only smoke is often generated. . Reference numeral 3 in FIG. 1 is an infrared sensor, which is similar to the existing infrared sensor,
When it detects the infrared rays contained in the flame, it outputs a detection signal, but it does not just detect the infrared rays but also automatically swings in any direction by 360 ° by a swinging mechanism (not shown). It is designed to detect and detect infrared rays. An existing rotation mechanism can be used as the swing mechanism. Reference numeral 4 in FIG. 1 denotes a water discharge nozzle, which is attached to the infrared sensor 3 and is rotated together with the infrared sensor 3 in any direction by 360 degrees so that the infrared sensor 3 can detect the flame 2. Upon detection, the water discharge port of the water discharge nozzle 4 automatically faces the flame 2.

Reference numeral 6 in FIG. 1 is a controller. When receiving the detection signal from the flame detector 1, the infrared detector 3 is turned on and the infrared detector 3 is rotated to search the flame 2. When the infrared sensor 3 detects the heat source and the detection signal is continuously output from the flame sensor 1, the electromagnetic valve 7 is opened, the plunger pump 9 is operated, and the water in the water storage tank 8 is activated. Is pressurized to supply water to the water supply pipe 10, and the water is discharged from the water discharge nozzle 4. Also,
When the detection signal from one or both of the flame detector 1 and the infrared detector 3 is stopped, this controller 6 closes the electromagnetic valve 7 and stops the plunger pump 9 to stop the water supply. .

Although the two water supply pipes 10 are provided and the electromagnetic valves 7 are provided on each of the water supply pipes 10 to form two water supply systems, the number of water discharge systems may be three or more in the present invention. In these cases, when any one of the flame detectors 1 and infrared detectors 3 of the water discharge system detects the flame 2, the electromagnetic valves 7 of all the water discharge systems do not open all at once, but the flame detectors 1 and It is preferable to open only the electromagnetic valve 7 of the water discharge system in which both of the infrared ray detectors 3 are outputting detection signals. This is to minimize the damage caused by water wetting in the room caused by discharging water to a place other than the fire source.

[0010]

The automatic flame detection and extinguishing system of the present invention has the following effects. ． Since flames such as matches and lighters can also be detected by the flame detector 1, it is possible to detect those flames before they occur and prevent them from occurring. ． Even if a fire occurs, the flame is automatically detected, and the water discharge nozzle 4 automatically discharges water toward the flame 2, so that the fire can be extinguished quickly, efficiently, and surely. ． In the invention of claim 2, the flame detector 1 and the infrared detector 3
Both of them detect the flame 2 and operate.
Water will not be discharged due to malfunction of those devices, and water will not be discharged even if a match or lighter ignites for smoking. ． In the invention of claim 3, when the flame is extinguished, the water discharge is automatically stopped, so that there is no wasteful water discharge, and damage caused by water discharge is prevented. ． In the invention of claim 4, since water is not discharged from the water discharge system other than the place where the flame 2 is present, water is efficiently discharged, and there is no wasteful water discharge.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of an automatic flame detection and extinguishing system of the present invention.

[Explanation of symbols]

 1 Flame detector 2 Flame 3 Infrared detector 4 Water discharge nozzle

Claims (4)

[Claims] 1. A flame detector 1, an infrared detector 3 which is actuated based on a detection signal from the flame detector 1 so as to face the flame 2, and an infrared detector 3 in the room. An automatic flame detection and extinguishing device, which is equipped with a water discharge nozzle 4 which is attached and discharges water to the flame 2 sensed by the infrared sensor 3. 2. The automatic flame detection and extinguishing system according to claim 1, wherein water is discharged from the water discharge nozzle 4 only when the infrared sensor 3 detects the flame 2 and the detection signal from the flame sensor 1 continues for a predetermined time. The automatic flame detection and extinguishing system characterized by the above. 3. The automatic flame detection and extinguishing system according to claim 1 or 2, wherein the flame 2 is extinguished by the water discharged from the water discharge nozzle 4, and one or both of the infrared sensor 3 and the flame sensor 1 are flame 2. An automatic flame detection and extinguishing device, characterized in that the water discharge from the water discharge nozzle 4 is stopped when the infrared rays of the above are no longer detected. 4. The automatic flame detection and extinguishing system according to claim 1, 2, or 3, wherein two or more water supply pipes 10 for supplying water to the water discharge nozzle 4 are provided, and each flame detector 1 is provided for each water supply pipe 10. An automatic flame detection and extinguishing system, which is provided with an infrared sensor 3 and a water discharge nozzle 4.