JP2001017564A - Extinguishing equipment starting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable starting of initial fire extinguishing activities on the occur rence of a fire by mounting a heat conductive rod in the vicinity of a fire extinguishing chemical spraying head. SOLUTION: A a head 11 provided with an opening mechanism, communicating with a fire extinguishing chemical force feed supply section 18, an outlet 12 of which is designed to be usually closed and opened by fire heat and spray a fire extinguishing chemical, and a rodlike heat conductor 16, one end of which is brought near the opening mechanism of the head 11 and the free end is extended in the direction of a fire heat source prediction, whereby even if a fire heat source is shifted away slightly from the opening mechanism of the head 11, fire heat can be collected immediately and transmitted quickly to the opening mechanism of the head 11, contributing greatly to the realization of initial fire extinguishing activities.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a general house,
A fire has occurred in an automatic fire extinguishing system that is fixedly installed inside a high-rise building, company building, factory, or indoors such as a public facility such as a public hall or library, and automatically emits a fire extinguishing agent when fire occurs. The purpose of the present invention is to improve quick extinguishing performance in order to enable the start of an initial fire fighting activity for a fire.

[0002]

2. Description of the Related Art An automatic fire extinguishing system detects a fire by a sensor and electrically opens a fire extinguishing agent discharge port based on an electric signal generated by the sensor to emit a fire extinguishing agent. A structure in which a sensor portion is integrated with a medicine discharge port is known. In particular, as the latter example, as shown schematically in FIG. 6, the distal end of the pipe 2 connected to the pressure-accumulation type fire extinguishing agent container 4 is directly closed by the low-temperature molten metal 5.

That is, a fire extinguishing agent discharge port 3 to which a heat collecting plate 1 is attached is formed at the tip of the pipe 2, and the vicinity of the opening of the fire extinguishing agent discharge port 3 is easily melted by fire heat such as solder. Closed by the low-temperature molten metal 5,
In order to efficiently transmit the heat of the fire that occurred at the time of the fire captured by the heat collecting plate 1 to the low-temperature molten metal with reduced heat dissipation on the way,
The so-called local heat sensing method is adopted, in which the distance between the heat collecting plate 1 and the low-temperature molten metal 5 is extremely short.

[0004]

However, in the case of the conventional structure described above, the only part that senses fire heat is the heat collecting plate 1 and the vicinity of the fire extinguishing agent discharge port 3 where the low-temperature molten metal 5 is applied. Because there is, fire extinguishing agent discharge port 3
If the installation location is far from the source of fire, it will take a considerable time for the fire heat to reach the vicinity of the extinguishing agent discharge port 3 from the start of the fire, resulting in the loss of the initial fire fighting activity and the possible spread of the fire There is also. Therefore, it has recently been proposed to install the fire extinguishing agent discharge ports 3 provided with the heat collecting plate 1 and the low-temperature molten metal 5 at regular intervals in the middle of the pipe 2 as shown in FIG. However, it is not practical because the mechanism is complicated and the cost is high.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention is intended to solve the above-mentioned problems in the prior art, and more specifically, a discharge port for communicating with a fire extinguishing agent pressure supply unit. Was closed and opened by the fire heat, and provided with an opening mechanism for emitting a fire extinguishing agent, one end was brought close to the opening mechanism of the head, and the free end was extended in the direction of the expected portion of the fire heat source. However, the present invention relates to a fire extinguisher starting device including a rod-shaped heat conductor made of a material having good heat conductivity such as a heat pipe and capable of being opened even if any portion in the length direction is heated by fire heat.

Further, according to the present invention, there is provided a rod-shaped heat conductor having one end close to the head opening mechanism described above and a free end extending in the direction of the expected portion of the fire heat source. The present invention also relates to a fire extinguisher starting device in which a heat insulating material is coated on at least a part of an intermediate portion. Further, according to the present invention, a heat collecting fin is attached to at least a part of the rod-shaped heat conductor whose one end is close to the opening mechanism of the head and whose free end extends in the direction of the expected portion of the fire heat source. Related to a fire extinguisher starting device.

Further, according to the present invention, there is provided a rod-shaped heat conductor having one end close to the head opening mechanism described above and a free end extending in the direction of the expected portion of the fire heat source. The present invention also relates to a fire extinguisher starting device in which at least a part of an intermediate portion is covered with a heat insulating material and a heat collecting fin is attached to at least a part of a part not covered with the heat insulating material.

In the above configuration, when a fire occurs and the heat of the flame heats any part of the rod-shaped heat conductor,
The heat reaches the opening mechanism of the head with the ends approaching each other through the rod-shaped heat conductor, melting the closing member using a low-temperature molten metal member such as solder closing the opening, and opening it. A fire extinguishing agent is fed and supplied from the fire extinguishing agent pumping supply unit which is in contact with the fire extinguishing agent, and is emitted toward the fire occurrence area.

In this case, when at least a part of the above-mentioned rod-shaped heat conductor from the vicinity of the opening mechanism of the head to an intermediate portion in the longitudinal direction thereof is covered with a heat insulating material, the rod-shaped heat conductor is provided. The temperature of the fire flame heat received can be transmitted to the opening mechanism of the head without substantially attenuating the temperature on the way. In addition, when heat collecting fins are attached to at least a part of the length of the rod-shaped heat conductor in the longitudinal direction separately from or together with the above-mentioned heat insulating material, the heat of the fire can be more quickly reduced by the heat of the rod shape. Heat can be collected in the conductor.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific contents of the present invention will be described below with reference to a first embodiment shown in FIG.
Reference numeral 11 denotes a head, and 16 denotes a heat conductor. Head 1
1 is connected to a fire extinguishing agent pressure feeding supply unit 18 via a pipe 17, and a discharge port 12 of the head 11 for discharging a fire extinguishing agent is usually closed by a low melting point metal 13 such as solder, The opening mechanism is configured to melt and open when receiving the fire, and to emit the fire extinguishing agent.

Further, the details of the opening mechanism will be described. As shown in FIG. 1A, the low melting point metal 13 is simply filled in the discharge port 12 and sealed, or as shown in FIG.
A ring-shaped low-melting-point metal 13 is arranged around the opening of the discharge port 12, and the ring-shaped low-melting-point metal 13
A sealing plate 14 is attached so as to cover the heat, so that the heat of the fire can be collected more quickly. Alternatively, as shown in FIG.
It is also conceivable to insert a special sealing plate 15 having a character shape so as to accelerate the heat melting of the low melting point metal 13. In the above-described embodiment, a low melting point alloy such as solder is used as the closing means of the discharge port 12. In addition, for example, a bimetal that does not melt or a shape memory alloy that deforms at a high temperature may be used. .

On the other hand, the heat conductor 16 is made of a metal pipe or the like having good heat conduction efficiency, has a rod shape with a length of about 10 cm to 100 cm, and has one end close to the opening mechanism of the head 11. In addition to being integrally fixed and attached to the side wall of the head 11 on the side of the discharge port 12, the free end is extended in the direction of the expected portion of the fire heat source. Further, in the case of the present embodiment, a heat pipe is used as the heat conductor 16, but it is not necessarily limited to this, and for example, copper or aluminum may be used. Further, the heat conductor 16 does not necessarily have to be linear as in the embodiment, but may be bent into, for example, an L shape, a U shape, or an S shape, and may be configured in a meandering shape.

FIG. 3 shows a second embodiment of the present invention. That is, the rod-shaped heat conductor 16 having one end close to the opening mechanism of the head 11 and the free end extending in the direction of the expected portion of the fire heat source has at least one portion extending from the vicinity of the opening mechanism of the head 11 to an intermediate portion in the length direction. The part is covered with a heat insulating material 19. As the heat insulating material 19, for example, plastic, glass wool, or the like is used.
6 is applied to the outer peripheral surface, whereby the heat mobility is further improved.

FIG. 4 shows a third embodiment of the present invention. That is, the heat collecting fins 20 are attached to at least a part of the rod-shaped heat conductor 16 having one end close to the opening mechanism of the head 11 and the free end extending in the direction of the expected portion of the fire heat source. . That is, the heat collecting fins 20 are formed by integrally welding a large number of disc-shaped metal plates made of aluminum, copper, or the like to the outer peripheral surface of the rod-shaped heat conductor 16 with a certain interval therebetween. Thus, the heat collecting effect of fire heat can be further improved.

FIG. 5 shows a fourth embodiment of the present invention. That is, in this case, FIG.
It has both the heat insulating material 19 of the second embodiment and the heat collecting fins 20 of FIG. 4 (third embodiment). Specifically, a rod-shaped heat conductor is provided with a head opening mechanism. At least a portion from the vicinity to the intermediate portion in the length direction is covered with a heat insulating material, and heat collecting fins are attached to at least a portion of the portion not covered with the heat insulating material, thereby collecting fire heat. In addition to further improving the thermal effect, the heat of the collected fire heat is transmitted to the head 11 with almost no attenuation, and the opening mechanism is opened more quickly to start the extinguishing agent emission, thereby realizing the initial fire extinguishing. Can be fulfilled.

EXPERIMENTAL EXAMPLE 1 FIG. 2 was prepared for an experiment. That is, the discharge port of the opening mechanism in the head 11 is filled and sealed with solder having a melting point of 96 ° C. as a low melting point metal, and as the heat conductor 16, a 25 cm long heat pipe (manufactured by Sumitomo Light Metal Co., Ltd.) having good heat conduction efficiency is used. Was. Further, n-heptane was used as the heat source F, and was ignited and burned (see FIG. 2B). In this case, the tip of the heat pipe is displaced by about 10 to 15 cm above the ignition source. On the other hand, as an example to be compared with this, a configuration using a conventional head H in which the heat sensor and the discharge port are almost integral (see FIG. 2A) was prepared. Table 1 shows the results
It was just as it appeared.

<Table 1> (Conventional type a) (Invention b) Fire extinguishing time (sec): 30, 45, 50, 60 20, 30, 30, 35 From these results, it is found that in the conventional type, drug release is caused. The time required to extinguish the fire was 30 to 60 seconds, whereas that of the method of the present invention was 20 to 35 seconds. Therefore, it can be easily understood that the fire extinguishing time is clearly shortened in the case of the system of the present invention as compared with the conventional system.

[0018] Also, the conventional method for fire heat detection is as follows.
In contrast to the so-called "point" detection in local sensing, according to the method of the present invention, sensing is possible at any point along the length of the rod-shaped heat conductor, and therefore along the heat conductor. The effect of "line" detection was confirmed.

[Experimental Example 2] Next, FIG.
In addition, the heat conductor (heat pipe) used here with only the heat insulating material, the heat collector with only the heat collecting fin, and both the heat insulating material and the heat collecting fin are used. The one attached together was prepared.
In addition, as a heat source, tempura oil is placed on a gas stove
Ignition was performed at a high temperature of 00 ° C. or higher. The results of measuring the fire extinguishing time in each of the above cases are as shown in Table 2.

<Table 2> (only heat collecting plate) (only heat insulating material) (heat collecting plate + heat insulating material) Fire extinguishing time (seconds): 27, 34, 40 33, 41, 53 20, 28, 34 According to this, when only the heat insulating material was provided, the fire extinguishing time was shorter than when no heat insulating material was provided, and when only the heat collecting fins were provided instead of the heat insulating material, the heat insulating material alone was used. Fire-extinguishing time has been further reduced compared to the case.
In addition, when both the heat insulating material and the heat collecting fin were provided, the best results were obtained with the fire extinguishing time being 20 to 34 seconds.

As is clear from the above two experimental examples, when the rod-shaped heat conductor is used, even if the position of the flame due to the fire does not coincide with the position of the opening mechanism of the fire extinguishing head, the heat is not generated. From what is called “line” sensing along the length of the conductor, it is possible to efficiently sense fire heat and start rapid fire fighting. Furthermore, by adding heat insulating material and heat collecting fins to the rod-shaped heat conductor described above, the fire heat loss is reduced, so that the fire extinguishing time can be further shortened, and the initial fire extinguishing activity can be reduced. It became clear that the implementation could be achieved.

[0022]

As described above, the present invention provides an opening mechanism for communicating with a fire extinguishing agent pumping / supplying unit, which normally has a discharge opening and is opened by fire heat to emit a fire extinguishing agent. Since the fire extinguishing system activation device comprises a head provided with a rod-shaped heat conductor having one end close to the opening mechanism of the head and a free end extending in the direction of the expected portion of the fire heat source, a heat-sensitive portion and a drug discharge port are provided. In the present invention, as compared with the configuration of a conventional fire extinguishing system which is close to the local so-called "single point" fire detection configuration, the so-called "along the longitudinal direction of the rod-shaped heat conductor" Because of the “line” type of fire detection configuration, even if the fire heat source is slightly displaced from the head opening mechanism, it can immediately collect the heat of the fire and quickly transmit it to the head opening mechanism. It will greatly contribute to the realization of.

Further, one end is brought close to the opening mechanism of the head,
At least a part of the rod-shaped heat conductor whose free end extends in the direction of the fire heat source expected part from the vicinity of the head opening mechanism to the middle part in the length direction is covered with heat insulating material, or the rod-shaped heat conductor is When the heat collecting fins are attached to at least a part of the lengthwise direction, the fire extinguishing time is reduced, and when both the heat insulating material and the heat collecting fins are provided, the fire extinguishing time is further increased. Shortening is seen.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a fire extinguishing equipment starting device according to a first embodiment of the present invention.

FIG. 2 shows a comparison between the present invention and a conventional fire extinguishing system.
The conceptual diagram of the fire extinguishing equipment used in Experimental example 1.

FIG. 3 is a conceptual diagram of a fire extinguishing equipment starting device according to a second embodiment of the present invention.

FIG. 4 is a conceptual diagram of a fire extinguishing equipment starting device according to a third embodiment of the present invention.

FIG. 5 is a conceptual diagram of a fire extinguishing equipment starting device according to a fourth embodiment of the present invention.

FIG. 6 is a conceptual diagram showing a conventional fire extinguishing equipment starting device.

FIG. 7 is a conceptual diagram showing another example of the conventional fire extinguishing equipment starting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Head 12 Discharge port 13 Low-melting-point metal 14 Sealing plate 15 Special sealing plate 16 Thermal conductor 17 Piping 18 Fire extinguishing agent pressure feeding supply part 19 Heat insulating material 20 Heat collecting fin

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideo Nomura 1-1-1, Shimomachiya, Chigasaki City, Kanagawa Prefecture Inside Miyata Industries Co., Ltd. (72) Inventor Yoshimasa Ito 1-1-1, Shimomachiya, Chigasaki City, Kanagawa Prefecture No. Miyata Kogyo Co., Ltd. F-term (reference) 2E189 BB08 CC02 CD01

Claims (6)

[Claims] Claims: 1. A fire extinguishing agent pressure feeding supply unit,
Usually, the discharge port is closed and the head is provided with an opening mechanism that is opened by fire heat and emits a fire extinguishing agent, one end is brought close to the opening mechanism of the head, and the free end is a fire heat source predicting part. Fire extinguisher starting device consisting of a rod-shaped heat conductor extending in the direction. 2. The fire extinguishing equipment starting device according to claim 1, wherein the rod-shaped heat conductor is made of a material having good heat conductivity such as a heat pipe. 3. The fire extinguishing system according to claim 1, wherein the opening mechanism of the head can be opened even if any portion of the bar-shaped heat conductor in the longitudinal direction is heated by fire heat. Starter. 4. A rod-shaped heat conductor whose one end is close to the head opening mechanism and whose free end extends in the direction of the expected portion of the fire heat source has at least a portion extending from the vicinity of the head opening mechanism to an intermediate portion in the longitudinal direction thereof. The fire extinguishing equipment starting device according to any one of claims 1 to 3, wherein the heat insulating material is partially covered. 5. A rod-shaped heat conductor having one end close to a head opening mechanism and a free end extending in the direction of a fire heat source expected portion, heat collecting fins are attached to at least a part of its length in the length direction. The fire extinguisher starting device according to any one of claims 1 to 3. 6. A rod-shaped heat conductor having one end close to the head opening mechanism and a free end extending in the direction of the expected portion of the fire heat source has at least a portion extending from the vicinity of the head opening mechanism to an intermediate portion in the longitudinal direction thereof. The fire extinguisher starting device according to any one of claims 1 to 3, wherein a heat insulating material is partially covered, and a heat collecting fin is attached to at least a part of the portion not covered with the heat insulating material.