JPH0219177A - Container valve for fire extinguishing facility - Google Patents

Abstract

PURPOSE:To decrease the loss head of a flow and to execute a fire extinguishing agent discharge in a short time by arranging a gas generator through an open sealing plate in being faced to a fire extinguishing agent discharging route between a rupture disk arranged at the exit of a fire extinguishing agent container and a container main body. CONSTITUTION:At exists 3 and 6 of the fire extinguishing agent container filled with the fire extinguishing agent, a rupture disk 9 is arranged. A gas generator 12 is arranged through an open sealing plate 13 in being faced to a fire extinguishing agent discharge route A between a container 1 main body and the rupture disk 9. Namely, since the gas generator 12 is not projected to the discharge route of the fire extinguishing agent of a valve box and since a projection does not exist after the rupture disk 9 is fully opened, the loss head of the flow is decreased, and the fire extinguishing agent can be discharged in a very short time.

Description

Detailed Description of the Invention 0 Industrial Field of Application The present invention is a fire extinguisher for rapidly releasing a fire extinguishing agent filled in a container in a very short period of time to prevent an explosion or suppress a fire. This invention relates to equipment container valves.

O Conventional technology The extinguishing agents of gas-based fire extinguishing equipment are carbon dioxide and halon-13.
01 is well known. Container valves for fire extinguishing equipment, which are used to fill a container with a gas-based extinguishing agent and rapidly release the extinguishing agent from the container when a fire occurs, are known as quick release valves such as those disclosed in Japanese Utility Model Application No. 1983-93100. Pressure type vessel valves are well known.

○Problems to be solved by the invention In differential pressure type container valves, the larger the valve seat diameter, the larger the valve body, and the time required to fully open is 10 minutes after inputting the start signal.
It was over 0m5. This is the cumulative time of the time to open the pilot valve, the time to release pressure by the pilot valve, and the time for the valve body to move to the fully open position.As the mass of the valve body increases, it will move to the fully open position. Not only is it time consuming, but since it is necessary to stop the valve body after it is fully opened, it is necessary to increase the strength of the valve body and the valve box, which has the drawback that the valve body becomes very large.

In addition, because the flow path passing through the valve has to be elbow-shaped, there is a large flow loss of extinguishing agent when it is fully opened, and the apparent diameter is too large to release a large amount of extinguishing agent in a short period of time. There were problems such as the need for a large diameter.

Means for Solving the Problem The present invention arranges a gas generator through an open sealing plate facing the extinguishing agent discharge path between the crushing plate placed at the outlet of the extinguishing agent container and the container body. .

0 example The embodiments shown in the drawings will be described below.

The base side of the valve box 2 is screwed into the screw 5 of the entrance part 4 of the container body 10 filled with a fire extinguishing agent through the packing 3.
Attach the injection nozzle 6 to the tip side of the
The valve box 2 and the injection nozzle 6 are integrated with the container body 1, and the valve box 2 and the injection nozzle 6 constitute an outlet of the fire extinguishant container.

Reference numeral 6a indicates an ejection port formed in the 11 injection nozzle 6. Bento box 2
A rupture disc 9 is fixed to the nozzle-resistant 6 side of the holder 10 with a gasket 8 interposed therebetween. The inner peripheral surface of the holder 10 has a hexagonal hole shape, and the rupture disc 9 can be replaced freely by rotating the holder 10 using a corresponding tool having a hexagonal cross section.

An adapter 11 is removably attached to the side surface of the central part of the valve box 2 via a threaded part 15, and the gas generator 1 is attached to the adapter 11.
2 toward the center of the valve box 2 so that gas is generated. Further, an open sealing plate 13 is sandwiched between the tip of the adapter 11 and the peripheral wall of the valve box 2 with a gasket 14 interposed therebetween.

Gas generation 9% 12 is a solid gas generating agent 12B mainly composed of an azide compound and an ignition part 12A.
When a current of about 2A is passed through A, a gas generation reaction starts,
The cover 12c is broken when the generated gas pressure exceeds a certain pressure, and the opening sealing plate 13 is also broken.

As mentioned above, the gas generating agent 12B is ignited by the ignition part 12A.
The gas generator reacts to generate gas and destroys the opening sealing plate 13 to open it, so that the gas generator 1
The generated gas from the second outlet blows out.

Since the pressure of the generated gas is rapidly increased only in the valve box portion, the rupture disc 9 is fully opened and the fragments stick to the inner periphery of the holder 1G.

The extinguishing agent in the container body 1 is discharged from the spout 6a of the spray nozzle 6 within a short time. Note that the gas generating agent in the gas generator may be explosives. Also, rupture disc 9
Although it is assumed to be constructed from a single plate, it goes without saying that it may be constructed from two or more composite members.

The pressure wave due to the gas generated by the gas generator 12 is 1 from the gas phase part.
It propagates faster in the a phase and attenuates depending on the distance from the gas generator. In the embodiment shown in the drawings, the outlet of the fire extinguishing container is arranged downward, and the inside of the valve box 2 is filled with a liquid phase portion of the extinguishing agent. Therefore, the pressure wave emitted from the gas generator 12 is at its maximum inside the valve body 2 and is significantly attenuated inside the container 1. Therefore, container 1
Not only is there no need to increase the pressure resistance of the gas generator more than necessary, but the rupture disc 9 can be placed close to the gas generator 12 to generate gas! In order to make maximum use of 112 pressure waves,
This has the advantage that the rupture disc 9 can be fully opened with a small amount of gas generating agent. On the other hand, it is of course possible to achieve the object of the present invention by changing the amount of the gas generating agent, even if the outlet of the container body is directed in a direction other than downward.

In addition, by sandwiching the rupture disc 9 between the holder 10 and the gasket 8 as in the embodiment, the method of fixing the rupture disc becomes simple and the possibility of leakage of extinguishing agent during non-operation can be minimized. It is advantageous to arrange the gas generator outside the valve box as in the embodiment, as it facilitates replacement and maintenance of the gas generator.

Effects of the Invention The present invention arranges a rupture disc at the outlet of a fire extinguishing agent container filled with a fire extinguishing agent, and connects a gas generator through an open sealing plate facing the extinguishing agent discharge path between the container and the rupture disk. Since the gas generator is not placed in the extinguishing agent discharge path of the valve box, after the rupture disc is fully opened, there is no protrusion, so the flow loss head is small and the fire is extinguished in an extremely short time. It has the effect of allowing the agent to be released.

Also, due to the structure of the differential pressure container valve, the inlet and outlet are elbow-shaped.
However, in the present invention, the direction of the flow path is straight, so the extinguishing agent can be discharged extremely smoothly, and it is easy to manufacture a container valve with a large diameter.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of a container valve for fire extinguishing equipment showing an embodiment of the present invention. 1 is the container body, 2 is the valve box, 9 is the rupture disc, 12 is the gas generator, 13 is the open seal plate, A is the extinguishing agent discharge path.

Claims (1)

[Claims] (1) In a container valve for fire extinguishing equipment in which a bursting disc is placed at the outlet of a fire extinguishing agent container filled with fire extinguishing agent, gas is generated through the open sealing plate facing the fire extinguishing agent release path between the container body and the rupturing disc. A container valve for fire extinguishing equipment for controlling explosions or fires, characterized by the arrangement of a container valve for fire extinguishing equipment for controlling explosions or fires.