RU19816U1 - FIRE FIGHTING HELICOPTER - Google Patents

Description

Fire extinguishing helicopter

The utility model relates to fire extinguishing means, in particular, with the use of a helicopter.

Known systems and devices for extinguishing fires, for example. BZMY helicopter fire extinguisher. manufactured by the Canadian company SEI Industries Ltd in Vancouver, British Columbia, ij. 8 An important means of fighting fire is the suspended 01 extinguisher to helicopters. Liquid is released when the exhaust valve is opened, controlled from a helicopter. The disadvantage of such a helicopter fire extinguisher is the lack of the possibility of directional distribution of the jet in horizontal and vertical planes, since the ejection of the liquid is carried out only vertically downward.

It is known to stop a fire extinguishing, which contains a container with a shut-off valve for liquids, a system of hoses and pipelines with fittings, pumps placed in a sealed chamber connected to the projector. at the same time, the pumps are connected via pipelines to the suction sleeve, tank, sleeve with a fire barrel and a manifold with nozzles. The liquid container is made of rubberized fabric, enclosed in waist bandages and suspended from the fuselage nodes. In addition, the installation has a suction lift system S64D I / 16. I / i8

sleeves containing leosdok. CHCICM olov. through which the winch cable is connected to the end of the suction sleeve (Patent No. 2097276, RF, B64D 1/18. opul. BI No. 33. 1997) - 2.

Although this installation has the ability to discharge liquid with the adjustment of its direction, it has a disadvantage - the danger of a helicopter flying close to a burning object due to the location of equipment directly in the helicopter, which limits the possibility of a fire.

For a comparative analysis with the proposed utility model, a device was selected for sampling, grading and draining the liquid (Pagent No. 56646B. RF. B64D 9/00} - 3 {. Relating to equipment of legacy devices, namely to helicopters. The device is a container that, by the sling is attached to the external suspension of the helicopter. Inside the tank there is an intake-drainage system consisting of a float, a bellows and a mechanism for fixing the system. The liquid is drained from the tank through a hole in the bottom in a vertical direction.

At the same time, the helicopter cannot fall directly to the fire because of the danger in the work of the fire operator and crew, and draining from a great height is not effective as a result of spraying the liquid with air flow from the screws.

The utility model solves the problem of increasing the efficiency of a device for extinguishing a fire, which is determined by the possibility of both vertical discharge of liquid and ejection of liquid with adjustment of its direction.

The task is achieved by that. that a helicopter fire-fighting installation containing a container with an intake-drain system mounted on the external suspension of the helicopter is equipped with a fire barrel and pumps, while the suction nozzles of the pumps are connected to the tank, and the discharge pipes through the pressure hoses to a collector mounted on the tank and associated with the fire barrel, made with the possibility of rotation in the vertical and horizontal planes, while the suspension is fixed from rotation relative to the vertical axis of the suspension of the helicopter.

To protect the pumps from possible damage during liquid intake or lowering the unit to the ground, a frame is mounted on the latter, on which an additional fire hose is installed to collect liquid from the capacities of vehicles, for example, a fire engine.

The essence of the utility model is illustrated in FIG. 1 - 5, where:

FIG. 1 - helicopter installation to extinguish a fire with rotation lock relative to the vertical axis of the helicopter suspension;

FIG. 3 - view along B - top view of the tank:

FIG. 4 - node B - node fixing the cable:

FIG. 5 is a variant of fluid intake from the vehicle’s tank.

Here: 1 - helicopter: 2 - suspension: 3 - slings: 4 - capacity: 5 - frame; 6 - pump: 7 - pressure hose; 8 - collector; 9 - fire barrel; 10 barrel rotation mechanism in the horizontal plane: 11 - rocking chair: 12 - barrel rotation mechanism in the vertical plane: 13 - additional fire hose: 14 - suspension fixing cables; 15 - spacer; 16 - safety rings; 17 - fire truck, 18 - low level alarm.

On the suspension 2 of the helicopter 1, with the help of slings 3, a container 4 with a welded frame 5 is suspended. A container 4 contains an intake-drain system with a low level switch 18.

Pumps 6 and a manifold 8 are fixed to a tank 4, and a fire barrel 9 is connected to it. A manifold 8 is connected through pumps 7 to the pumps 6. The fire barrel 9 is rotatable in the horizontal and vertical planes using rotation mechanisms 10 and 12, respectively. For the intake of liquid from the containers of vehicles there is an additional fire hose 13, mounted, for example, on the frame 5. Installation from rotation relative to the vertical axis of the suspension is fixed with two cables 14, fixed. some x-niam in a helicopter I, and. others on the tank 4. The cables 14 are made over the entire length of the suspension on both sides relative to it. moreover, the cables 14 pass through the holes in the struts 15. The rings are inserted into the holes 16. The cables prevent mechanical damage.

When the helicopter hangs and decreases over the reservoir, the tank 4 is lowered into it and with the help of the intake-drainage system it is filled with water. Filling the tank with liquid is possible directly from the fire engine using the fire hose 13, mounted on the frame 5.

After filling the tank 4 with liquid, the helicopter goes to the fire. Vertical discharge of liquid occurs through an opening in the bottoms of the tank, as well as the installation of the prototype, when the helicopter hangs over the source of ignition. To more effectively extinguish a fire, a helicopter can fly up from different sides of the fire and hover at the desired height. The operator from the helicopter gives a signal to turn on the pumps 6, which begin to pump fluid from the tank 4 to the manifold 8 through the pressure hoses 7. From where the fluid enters the fire barrel 6. Using the rotation mechanisms 10 and 12, the trunk moves in horizontal and vertical planes at the operator’s signal accordingly, directing a stream of liquid in the desired direction. The position of the container relative to the fire may vary

helicopter hovering. After the fluid reaches a certain level, the low level switch 18 is activated and the pumps 6 are automatically turned off.

Thus, a fire extinguishing system protected as a utility model is an effective means for extinguishing a fire, which is determined by the possibility of both vertical discharge of the liquid and discharge of the liquid with the adjustment of its direction, in addition, it provides the possibility of liquid intake from both river basins. lakes, ponds, etc. sources and from vehicle capacities.

The implementation of design measures that distinguish this fire installation from the prototype allows you to carry out fire extinguishing, safe for the crew and the fire operator.

Claims (3)

1. A helicopter fire extinguishing installation containing a container with an intake-drain system mounted on the external suspension of the helicopter, characterized in that the container, fixed from rotation relative to the vertical axis of the suspension, is equipped with a fire barrel and pumps, the suction nozzles of which are connected to the container, and injection through pressure hoses - with a collector mounted on the tank and connected to the fire barrel, made with the possibility of rotation in horizontal and vertical planes.  2. Helicopter fire extinguishing installation according to claim 1, characterized in that to protect the pumps from possible mechanical damage to the tank mounted frame. 3. Helicopter fire extinguishing apparatus according to claim 1, characterized in that for the intake of liquid from a land vehicle it is equipped with an additional fire hose.