SU368869A1 - FOREST FIRE VEHICLE - Google Patents

Description

one

FIELD: fire fighting equipment.

Forest firefighters are known, which contain tanks for fire extinguishing fluid installed on it, a pump with a hose system, and a gun barrel located in the front end part of the all-terrain vehicle.

However, they do not provide the necessary reliability for extinguishing fire edges in a single pass, and also contain a limited amount of fire extinguishing liquid in the tank.

The purpose of the present invention is to increase labor productivity in extinguishing the edge of a fire.

This is achieved by the fact that in the rear end part of the all-terrain vehicle an additional monitor carriage is placed. In order to improve the fire extinguishing efficiency and extinguish the extinguishing fluid by using it in the form of an inert mechanical foam: fetal trunks can be made in the form of gas-jet ejectors using the engine exhaust gas.

FIG. 1 shows a diagram of the proposed all-terrain vehicle; in fig. 2 - a firewall with hand lines in section.

The engine / all-terrain vehicle through the coupling 2 is connected to the centrifugal pump 3, the suction pipe of which is connected to the arm, vamp

through valve 5 with a reservoir for the Frother 6, through valve 7 with the reservoir and through valve 8 with the tank 9 for the fire extinguishing liquid, respectively. Discharge port

10 of the pump 3 is connected by sleeves and a crane 11 to the fire bore 12, through the crane 13 to the additional fire bore 14, and also through the Crane 15 to the winding trunks 12 and M, which are made according to the type of gas-jet

ejector with the use of engine exhaust energy.

On the fire monitors 12 and 14 are fixed cone nozzles 16 and 17 with a grid of 18 and 19 (not shown in the drawing). Traffic fumes

the engine / vent to the atmosphere by the pipe 20, which can be blocked by the valve 21.

The operation of the device is as follows.

When extinguishing the edge of a fire with a jet of extinguishing liquid along the all-terrain vehicle, the taps 5, 7, and 15 are blocked. The extinguishing liquid through the valve 8 is supplied from the reservoir 9 to the pump 3, from where it is fed through the taps // and 13

to the fire monitors 12 and 14 emitting a jet of liquid on the edge of the fire.

When extinguishing fires with foam, the valve 5 is opened in the necessary cTenetrn, the valve 21 is closed and the exhaust gases enter

into the fire monitors 12 and 14, where they are mixed with the foaming liquid coming from the pump, forming an inert, low-expansion mechanical foam.

In order to protect the fire-extinguishing fluid from the ecolomies of the fire monitors 12 and 14, conical nozzles 16 and 17 are put on, with grids 18 and 19. The expansion of the high-fold foam occurs on grids 18 and 19, and an additional amount of gas (in this the case of air) to fill the Bubbles. Foams come from the atmosphere through the holes in the walls of the cone nozzles 16 and 17. Plozh, these holes provide. The dilution of engine exhaust air in the ratio of 1: 2, which doesn’t weaken the efficiency of the resulting foam, since the oxygen content in its bubbles remains less than 14%.

FORDING THE INVENTION

Claims (2)

1. A forest fire all-terrain vehicle, containing steam-mounted fire extinguishing tanks, a pumping pump with a hose system and a gun barrel, stirred in the front end of the vehicle, characterized in that, in order to increase its effect edges of the lodge, in the back the end part of the all-terrain vehicle is placed an additional gun carriage. 2. The all-terrain vehicle according to claim 1, characterized in that, in order to increase the fire extinguishing efficiency and save the extinguishing liquid by using it in the form of inert mechanical foam, the all-terrain vehicle's fire monitors are made in the style of gas-jet ejectors using exhaust gases of the engine. / 2ff