JP2002126114A - Pressurizing type mechanical foam extinguisher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressurizing type mechanical foam extinguisher effective in using pressurized gas for generating foam and capable of effectively extinguishing fire by promoting fire extinguishment by making gas type fire extinguishing chemicals flow out even if the foam is broken down by a flame by extinguishing the fire by a synergistic effect with the gas type fire extinguishing chemicals entering the foam at foam discharging time and promoting a fire extinguishing effect of the gas type fire extinguishing chemicals together with an effect of foam fire extinguishing chemicals by surely carrying the gas type fire extinguishing chemicals near to a fire source by the foam. SOLUTION: A pressurized gas cylinder 5 is provided, and is constituted to contain a single or two or more of the gas type fire extinguishing chemicals such as argon, nitrogen, carbon dioxide and a halogen compound the same as the pressurized gas in the foam when discharging the foam by this pressurized gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pressurized mechanical foam fire extinguisher.

[0002]

The conventional mechanical foam fire extinguisher sucks air when the foam is radiated to generate foam, and the fire is extinguished by covering the burning material with the foam, so that the foam is completely burned. There is a problem that fire cannot be extinguished unless objects are covered.

[0003]

SUMMARY OF THE INVENTION A pressurized mechanical foam fire extinguisher according to the present invention has been made to solve such a problem, and is effective because a pressurized gas is used for foam generation. Extinguishing due to the synergistic effect with the gas fire extinguishing agent that enters the foam when the foam is radiated, the gas fire extinguishing agent flows out even if the foam is destroyed by the flame, and the fire is promoted. Since the chemical is reliably transported to the vicinity of the fire source, the fire extinguishing effect of the gas-based fire extinguishing agent is promoted together with the effect of the foam extinguishing agent, and the fire is extinguished more effectively.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 One embodiment of the present invention will be described with reference to FIG. FIG. 1 is an external view showing a pressurized gas cylinder provided outside a main body container.

In the figure, 1 is a main body container, 2 is a valve case mounted on the main body container 1, 3 is a hose drawn out from the valve case 2, 4 is a foaming device attached to the tip of the hose 3, and 5 is a main body container 1. Pressurized gas cylinder installed outside
Is a valve section of the pressurized gas cylinder 5, 7 is a gas outlet hose for connecting the valve section 6 and the foamer 4, and 8 is a lever provided on the valve case 2. By operating this lever 8, the valve section 6 is opened. Is configured to open.

Now, when the valve portion 6 of the pressurized gas cylinder 5 is opened by the lever 8, the gaseous fire extinguishing agent (argon, nitrogen, carbon dioxide, halogen compound, etc., alone or in combination of two or more) in the pressurized gas cylinder 5 is opened. ) Is the main container 1
The foamed fire-extinguishing agent (aqueous solution) is pressurized inside, so the pressurized foam is sent from the valve case 2 to the foamer 4 through the hose 3.

[0007] A gas-based fire extinguishing agent is introduced from the valve section 6 into the foam extinguishing agent sent to the foaming device 4 through the gas outlet hose 7 to generate bubbles. Foam is emitted from the horn 9 with the drug in it.

[0008] When the gaseous fire extinguishing agent is contained in the foam as described above, the released gaseous fire extinguishing agent is wrapped in the foam and released. To cover from the bottom to improve fire extinguishing performance and efficiency. In addition, the released foam covers the surface of the burning oil and extinguishes the fire, but even if the foam is crushed by fire, the gas-based fire extinguishing agent in the foam flows out, and together with the fire extinguishing effect of the foam, the gas-based extinguishing agent causes the fire. Fire fighting is promoted.

This fire-extinguishing effect is particularly effective for extinguishing alcohol, which is considered difficult to extinguish.

Embodiment 2 Another embodiment of the present invention will be described with reference to FIG. FIG. 2 is a partially broken external view showing a case where a pressurized gas cylinder is provided inside the main body container. The same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the figure, reference numeral 10 denotes a gas introduction pipe for introducing a gas fire extinguishing agent from the valve section 6 of the pressurized gas cylinder 5 into the main body container 1, and 11 denotes a siphon pipe.

Now, when the valve portion 6 of the pressurized gas cylinder 5 is opened by the lever 8, the gaseous fire extinguishing agent (argon, nitrogen, carbon dioxide, halogen compound, etc., alone or in combination of two or more) in the pressurized gas cylinder 5 is opened. ) Enters the main body container 1 through the gas introduction pipe 10 and the foam (aqueous solution) 1
2 is pressurized, the pressurized foam 12 is sent to the foamer 4 through the siphon tube 11.

The foam extinguishing agent 12 sent to the foamer 4
In the meantime, the gas-based fire extinguishing agent is introduced from the valve section 6 through the gas outlet hose 7 to generate bubbles. The bubbles are radiated from the horn 9 in a state where the gas-based fire extinguishing agent is contained in the bubbles. You.

[0013]

EXAMPLE Fire extinguishing was performed using the pressurized mechanical foam fire extinguisher of the first embodiment, and the results shown in Table 1 below were obtained. The fire extinguishing experiment was carried out based on "Ministry of Home Affairs Ordinance No. 28: Ministerial Ordinance for Specifying Technical Standards for Fire Extinguishers". As a fire extinguishing agent, a commercially available mechanical foam extinguishing agent (trade name: Neofoam) was used for both the experimental example and the comparative example. As a fire extinguisher of the comparative example, a conventional mechanical foam fire extinguisher of the type that sucks air when foaming is used.

[0014]

[Table 1]

As described above, when the pressurized mechanical foam fire extinguisher according to the present invention was used, both the fire extinguishing time and the fire extinguishing condition were better than when using the conventional mechanical foam fire extinguisher. That is, the result of the present invention that the fire extinguishing effect was more effectively exhibited.

[0016]

As described above, according to the present invention, the pressurized gas is used for foam generation, which is effective. In addition, the fire extinguishing is achieved by a synergistic effect with the gas fire extinguishing agent which enters the foam when the foam is emitted. Even if the foam is destroyed by the flame, the gas fire extinguishing agent flows out to promote fire extinguishing, and the gas fire extinguishing agent is transported to the vicinity of the fire source with the help of the foam. The extinguishing effect of the system fire extinguishing agent is also promoted, and an effect of extinguishing the fire more effectively is obtained.

[Brief description of the drawings]

FIG. 1 is an external view showing a first embodiment of the present invention.

FIG. 2 is a partially broken external view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body container 2 Valve case 3 Hose 4 Foamer 5 Pressurized gas cylinder 6 Valve part 7 Gas lead hose 8 Lever

Claims (1)

[Claims] 1. A pressurized gas cylinder is provided, and when a bubble is radiated by the pressurized gas, the same gas-based fire extinguishing agent as the pressurized gas, such as argon, nitrogen, carbon dioxide, or a halogen compound, is used alone or in the foam. A pressurized mechanical foam fire extinguisher characterized by being configured to accommodate two or more.