DEVICE FOR DRY FIRE-EXTINGUISHING Russian patent published in 2013 - IPC A62C2/00 

FIELD: fire prevention facilities.

SUBSTANCE: invention relates to fire-fighting facilities and can be used for fire-fighting in areas located far from open water reservoirs, comprises a device for dry fire-fighting. At that it consists of fire-extinguishing means - helicopter made with the ability to hover over the burning object after arrival to and pour on it the fire-extinguishing water from the water container. At that under the bottom of each helicopter there are fasteners for suspension, in case of necessity of use of this helicopter for dry fire-fighting, the platforms for dry fire-fighting having a receiver for compressed air, connected with the compressor of compressed air with the electric drive with the supply from the electrical on-board network of the helicopter. On the other side the receiver for compressed air is connected to the inlet of the fire retardant hermetic fire hose made with the ability of cabling and winding on the bobbin. At that it is made with the ability to supply compressed air to the fire hose through the hollow shaft of the fire hose bobbin from the receiver for compressed air, on the other end of the fire hose there is a pulsed solenoid valve connected to the container. At that the container filled with the fire-extinguishing agent is designed for creation of repeated short-duration blast exhausts of compressed air with portions of the dispersed fire-extinguishing agent injected in them when opening the pulsed solenoid valve made with the ability to trigger when occurrence of an electrical pulse from the control unit mounted in the helicopter, through the removable cable with the connector, connecting on-board electrical network of the helicopter with the platform for dry fire-fighting, through the device for transmitting current from the stationary housing of the platform for dry fire-fighting to the rotating hollow shaft of the fire hose bobbin, through the cable attached to the latter. At that the fire hose bobbin is made with the ability of reverse rotation from the electromagnetic actuator powered from the on-board electrical network of the helicopter, through the reducer, through its spline shaft, through the ring gear rigidly mounted on the hollow shaft of the fire hose bobbin.

EFFECT: invention is aimed at improving the effectiveness of fire-fighting in arid regions, by creating repeated short-duration blast exhausts of compressed air with portions of the dispersed fire-extinguishing agent injected in them.