Dry powder self-actuating extinguisher

FIELD: fire-fighting means.

SUBSTANCE: invention refers to devices for fire extinguishing agent supply to a fire source. An extinguisher cylinder wherein a dry powder is put comprises a metal-bonded glass bottle of the length 500 mm and diameter 54 mm, and in the middle of the glass filled with the powder, there is a layer of a special solid substance transformed in a gaseous state at temperature 100°C.

EFFECT: higher performance speed and reliability of the extinguisher that provides effective fire protection of the process equipment.

1 dwg


The invention relates to mechanical engineering, in particular to a device for extinguishing means flashpoint.

The closest technical solution to the stated object is a fire extinguisher on A.S. USSR №593019, F16D 3/04, 1976 (prototype), comprising a housing in which the powder composition, is poured through the tube.

The disadvantages of the known solutions are relatively low reliability of operation and low performance.

The technical result - increase of efficiency of protection of the equipment against fires by increasing the speed and reliability of operation.

This is achieved by the fact that in powder self-actuating the fire extinguisher, comprising a housing in which the powder composition, is poured through the tube, the housing contains a glass bulb in a metal frame with a length of 500 mm and a diameter of 54 mm, filled with powder, and in the middle of the bulb is a layer of special solids passing into a gaseous state at a temperature of 100°C.

Figure 1 presents the scheme of the self-actuating powder fire extinguisher, figure 2 is the radius of its action.

Powder self-actuating extinguisher contains a glass flask (figure 1) in a metal frame with a length of 500 mm and a diameter of 54 mm, filled with powder. In the middle of the bulb find the camping interlayer special solids, rolling in the gaseous state at a temperature of 100°C. Generated at this temperature, the pressure breaks the flask, resulting in a pulse emission of the powder, which is scattered in the space volume 5...8 m3sleeping in the source of the fire (figure 2).

Powder self-actuating extinguisher works as follows.

In the middle of the bulb is a layer of special solids passing into a gaseous state at a temperature of 100°C. Generated at this temperature, the pressure breaks the flask, resulting in a pulse emission of the powder, which is scattered in the space volume 5...8 m3sleeping in the fire source. These fire extinguishers are effective in areas of low volume: in a closed electrical devices, small stores, living rooms, garages, etc.

During manual operation of fire extinguishers of this type flask break with one of the ends and fall asleep burning powder plot.

The choice of the type and the calculation of the required number of fire extinguishers depend on their fire-fighting capacity, the marginal area and class of fire according to ISO 3941-77.

Powder self-actuating a fire extinguisher, comprising a housing in which the powder composition, is poured through the tube, characterized in that it contains a glass bulb in a metal frame is Lina 500 mm and a diameter of 54 mm, filled with powder, and in the middle of the bulb is a layer of special solids passing into a gaseous state at a temperature of 100°C.


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3 cl, 1 dwg

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2 cl, 2 dwg