JP4658359B2 - Fire extinguishing method and fire extinguishing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire extinguishing method in which a fire extinguishing gas is put into a foam and then released, and a fire extinguishing apparatus that emits a foam containing the fire extinguishing gas .
[0002]
[Problems to be solved by the invention]
In this type of conventional fire extinguishing method, since the foam with a constant combination of the fire extinguishing gas and the foam extinguishing agent is released, when the foam is set as a fluid foam, the floor surface is covered quickly and approaches the fire source quickly. However, since the foam is heavy and does not accumulate, fire extinguishing effect cannot be obtained for the upper fire source. There is a problem that approaching is delayed and it takes time to extinguish the fire.
[0003]
[Means for Solving the Problems]
The present invention has been made to solve such problems, and in the initial stage of the release time, bubbles that are heavier than air are scattered by the flame by forming a fluid bubble containing CO2 gas. Without going off, you can quickly approach a flat fire source, cover the floor and use a small amount of CO2 gas effectively in a short time to extinguish the fire, and the fire extinguishing effect goes up in the subsequent stage. By forming the bubbles, the bubbles are piled up and broken so as to wrap in the flame from the lower side against the upper fire source, and the IG55 gas is effectively supplied to the base of the flame from the lower side and can be extinguished. By switching to gas and releasing it, the amount of CO2 gas can be reduced as much as possible.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a graphical representation of a fire extinguishing method, and FIG. 2 is a schematic diagram of a fire extinguishing system used to implement the fire extinguishing method of FIG.
[0005]
In the figure, 1 is a foamer, 2 is a gas supply pipe for supplying a fire extinguishing gas to the foamer 1, 3 is a CO2 gas cylinder, 4 is a starter A for the CO2 gas cylinder 3, 5 is an IG55 gas cylinder, 6 is an IG55 gas cylinder 5 Activation devices B and 7 are foam extinguishing agent supply pipes for supplying the foam extinguishing agent to the foamer 1, 8 is a mixer, 9 is a water pump, 10 is a water tank, and 11 is a fluid foam. Foam aqueous solution storage tanks A and 12 are valves A, 13 is a foam aqueous solution storage tank B that forms a foam with waist, 14 is a valve B, 15 is each activation device A4, B6, water pump 9 and each valve A12. , B14.
[0006]
When a fire occurs, at the initial stage of release time (about 20 seconds), the control panel 15 activates the activation device A4, and at the same time the CO2 gas in the CO2 gas cylinder 3 is sent from the gas supply pipe 2 to the foamer 1, The control panel 15 drives the water pump 9, opens the valve A12, and the foam aqueous solution that forms fluid foam by the mixer 8 is mixed with water and sent to the foamer 1. A fluid bubble containing gas is released.
[0007]
Subsequent to this release, the gas amount in the CO2 gas cylinder 3 disappears in about 20 seconds, the control panel 15 activates the activation device B6, and the IG55 gas in the IG55 gas cylinder 5 flows from the gas supply pipe 2 into the foaming device. At the same time, the valve A12 is switched from the valve A12 to the valve B14 by the control panel 15, and the foaming aqueous solution forming the foamy foam by the mixer 8 is mixed with water and sent to the foamer 1. Will release a foamy bubble containing IG55 gas.
[0008]
In this way, fluid bubbles containing CO2 gas are released at the initial stage of the release time, so these bubbles are heavier than air, so they approach the flat fire source quickly without splashing by the flame. Cover and extinguish with a small amount of CO2 gas in a short time, and in the subsequent stage, the foamy foam containing IG55 gas is released, so this foam accumulates and lowers to the flame against the upper fire source The IG55 gas is effectively supplied from below to the base of the flame and is extinguished.
[0009]
【The invention's effect】
As described above, according to the present invention, a fluid bubble containing CO2 gas is formed at the initial stage of the release time, so that a bubble heavier than air does not scatter by a flame and quickly reaches a flat fire source. Approaching the floor surface, a small amount of CO2 gas can be used effectively for fire extinguishing in a short time, and the fire extinguishing effect will increase, and at the subsequent stage, foam with IG55 gas will be formed, so bubbles will accumulate The IG55 gas is effectively supplied to the base of the flame from the lower side and can be extinguished while being extinguished from the lower side with respect to the upper fire source, and the amount of CO2 gas is minimized by switching to the IG55 gas and releasing it. The effect that it can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of the present invention.
FIG. 2 is a schematic diagram of a fire extinguishing system used to implement the fire extinguishing method of FIG. 1;
[Explanation of symbols]
1 Foaming device 2 Gas supply pipe 3 CO2 gas cylinder 4 Starter A
5 IG55 gas cylinder 6 Starter B
7 Foam extinguisher supply pipe 8 Mixer 9 Water pump 10 Water tank 11 Storage tank A
12 Valve A
13 Storage tank B
14 Valve B
15 Control panel

Claims (4)

A fire extinguishing gas is put into the foam and released, and the combination of the fire extinguishing gas and the foam extinguishing agent within the release time, and the fluid foam containing CO ₂ gas at the initial stage of the release time A fire extinguishing method, characterized in that it is changed so that a foamy bubble containing IG55 gas is formed at a later stage. CO in the initial stage of fire extinguishing ₂ Bubbles containing gas are released, and
CO ₂ After the release of gas, bubbles containing IG55 gas are released
Fire extinguishing method. A feeding means for feeding bubbles containing CO ₂ gas;
A feeding means for feeding foam containing IG55 gas;
Release means for releasing bubbles containing CO ₂ gas;
Release means for releasing bubbles containing IG55 gas;
The foam containing the CO ₂ gas is controlled to be released before the foam containing the IG55 gas, and the foam containing the IG55 gas is released after the release of the foam containing the CO ₂ gas is finished. fire extinguisher and a control unit for controlling the. A feeding means for feeding bubbles containing CO ₂ gas;
A feeding means for feeding foam containing IG55 gas;
Release means for releasing bubbles containing CO ₂ gas;
Discharging means for discharging bubbles containing IG55 gas;
A control unit for controlling the bubbles containing the CO ₂ gas to be released in an initial stage of fire extinguishing;
A fire extinguishing apparatus, comprising: a control unit that controls the foam containing the IG55 gas to be released after the release of the foam containing the CO ₂ gas is finished .

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