JP2975359B1 - Fire extinguisher sprayer for sodium combustion - Google Patents

Abstract

A fire extinguishing agent can be evenly sprayed in a sodium combustion fire extinguishing experiment, thereby improving the accuracy of the experiment and improving safety during the experiment. SOLUTION: A grid-like thin plate 12 into which a fire extinguisher 14 is put,
The bottom plate 13 is inserted into a gap formed below the lattice-shaped thin plate 12 to close the entire lattice opening and can be pulled out.
The fire extinguisher sprayer 1 for sodium combustion provided with a holding lid 15 covering the upper surface of the lattice is placed on the sodium combustion experimental vessel 2 to cover the entire combustion surface, and the bottom plate 13 is pulled out.
The fire extinguisher 14 in the grid is dropped on the combustion surface and sprayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprayer for use in an experiment on fire-extinguishing characteristics of a sodium fire extinguishing agent, and to a fire extinguisher sprayer for sodium combustion which can be applied to a fire extinguisher spraying device for a sodium pool fire. It is.

[0002]

2. Description of the Related Art
In the fire extinguishing property experiment of sodium fire extinguishing agent, a gas injection type fire extinguisher, a scoop and the like are used as a fire extinguisher sprayer.
However, in this method, it is difficult to spray the spray layer uniformly so as to evaluate the necessary spray layer on the combustion surface, which is an important parameter of the fire extinguishing agent characteristics, which hinders the quantitative evaluation. I have. In addition, the visibility is obstructed by the large amount of toxic aerosol gas generated during sodium combustion, which takes a long time to spray. Furthermore, it is necessary to wear safety equipment for heavy equipment as a safety measure. Was a problem.

[0003] The present invention has been made to solve the above-mentioned problems, and it is possible to uniformly disperse a fire extinguisher in a sodium fire extinguishing experiment, thereby improving the accuracy of the experiment and improving the safety during the experiment. The purpose is to aim.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a grid-like thin plate having a grid for containing a fire extinguishing agent, inserted into a gap formed below the grid-like thin plate to close the entire grid opening, and to pull out. A fire extinguisher sprayer for sodium combustion provided with a possible bottom plate and a holding lid for covering the upper surface of the grid, wherein the sprayer is placed on a sodium combustion experimental vessel to cover the entire combustion surface, and the bottom plate is pulled out to remove the grid. The fire extinguisher inside is dropped on the combustion surface and sprayed. In addition, the grid-like thin plate of the present invention has a 10 mm square and a depth of 1 mm.
It is a thin plate on which a grid of 0 mm is formed.

[0005]

Embodiments of the present invention will be described below. FIG. 1 is a perspective view showing a fire extinguisher sprayer for sodium combustion of the present invention, and FIG. 2 is a plan view and a side view of the sprayer of FIG. The fire extinguisher sprayer 1 for sodium combustion according to the present invention comprises an experimental vessel 2 for performing a sodium combustion fire extinguishing experiment.
And is configured to cover the entire surface of the container.
The fire extinguisher sprayer 1 for sodium combustion has a grid frame 11 around it.
Is provided with a grid 12 for containing a fire extinguisher 14. The grid 12 is a 10 mm square, 10 mm deep grid made of thin plates. The fire extinguisher is put in each grid in a uniform state, and is used to spread the fire extinguisher uniformly in the experimental vessel 1 when extinguishing the fire. It is. A gap into which the bottom plate 13 can be inserted is formed below the lattice 12. When the bottom plate 13 is inserted into the lower gap of the grid 12, the grid opening is closed so that the fire extinguishing agent does not fall from the grid opening. It has a function as a partition plate for performing. In addition, when the bottom plate 13 is pulled out, the fire extinguishing agent rises in the sodium fire extinguishing agent sprayer 1, and the fire extinguishing agent holding lid 15 is placed on the upper side of the grid 12 so as to prevent the spray layer from becoming uneven. ing.

Next, a method of spraying a fire extinguishing agent will be described with reference to FIG. First, with the bottom plate 13 inserted into the sodium fire extinguisher sprayer 1, a predetermined amount of fire extinguisher is evenly placed in the lattice portion (FIG. 3 (a)). Next, the leveling plate 3 is adjusted so that approximately the same amount of fire extinguishing agent enters each grid (FIG. 3B). When the bottom plate 13 is pulled out, the grid 12
The fire extinguishing agent on the upper part of the swelling rises, and the holding lid 15 is placed so that the scattered layer is not uneven (FIG. 3C). The sprayer 1 is placed on the burning experimental vessel 1 and the sprayer 1
At a stretch, and the fire extinguishing agent is sprayed on the combustion surface (FIG. 3 (d)). The fire extinguishing agent falls by pulling out the bottom plate (FIG. 3 (e)), and the dropped fire extinguishing agent is evenly spread on the burning sodium (FIG. 3 (d)). In this way, the fire extinguisher is evenly and uniformly applied to the sodium combustion surface in a short time.

[0007]

As described above, according to the present invention, the following effects can be obtained. The important parameters such as the thickness of the fire extinguishing agent and the uniformity of the surface were confirmed, and it became possible to quantitatively evaluate the fire extinguishing characteristics. A fire extinguisher sprayer covers the combustion surface, reduces external diffusion of toxic aerosols and improves safety during spraying. The spraying operation is simple, the time required for spraying is reduced, and the safety at the time of spraying and the accuracy of observation of the combustion surface can be improved. By improving the versatility of this sprayer, it can also be used as a fire extinguisher spraying device in the event of a sodium pool fire.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fire extinguisher sprayer for sodium combustion of the present invention.

FIG. 2 is a plan view and a side view of the sprayer of FIG. 1;

FIG. 3 is a diagram illustrating a method of spraying a fire extinguishing agent.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sprayer, 2 ... Experimental container, 3 ... Leveling plate, 11 ... Grid frame, 12 ... Grid, 13 ... Bottom plate, 14 ... Fire extinguisher, 15 ... Holding lid.

Of the front page Continued (72) inventor Hidehiko Nagasaku Ibaraki Prefecture Higashiibaraki-gun, Oarai-machi Narita-cho 4002 Nuclear Fuel Cycle Development Institute, Oarai Engineering Center, in Joyo Industry Co., Ltd. belongs to (58) investigated the field (Int.Cl. ^6, DB name G21C 9/04 GDF A62C 3/06 G21D 3/04 JICST file (JOIS)

Claims (2)

(57) [Claims] 1. A grid-like thin plate on which a grid for putting a fire extinguisher is formed, a bottom plate which is inserted into a gap formed below the grid-like thin plate to close the entire grid opening, and which can be pulled out, and A fire extinguisher sprayer for sodium combustion having a cover lid for covering the fire extinguisher in the grid on the combustion surface by placing the sprayer on a sodium combustion experimental vessel to cover the entire combustion surface and pulling out the bottom plate. A fire extinguisher sprayer for sodium combustion that is dropped and sprayed. 2. The grid-like thin plate has a size of 10 mm square and a depth of 1.
A fire extinguisher sprayer for sodium combustion, comprising a thin plate having a 0 mm grid formed thereon.