| 摘要 |
THE INVENTION RELATES TO A METHOD FOR FIGHTING FIRE, IN PARTICULAR IN A ROOM, CHARACTERIZED IN THAT THE FIRE IS INITIALLY, IN A FIRST STEP, FOUGHT BY MEANS OF AT LEAST ONE FOG-LIKE LIQUID SPRAY (4) HAVING COMPARATIVELY LARGE DROPLETS AND A GOOD PENETRATION POWER, IN ORDER TO AT LEAST SUPPRESS THE FIRE, AND THAT THEREAFTER, IN A SECOND STEP, THE INITIALLY UTILIZED FOG-LIKE LIQUID SPRAY (4) IS SCATTERED, BY MIXING A PRESSURIZED NON-COMBUSTIBLE GAS INTO THE LIQUID, TO FORM A TURBULENT LIQUID FOG (9) FOR FILLING THE FIRE ROOM AT LEAST ESSENTIALLY EVENLY AND FOR EXTINGUISHING SMOULDERING FIRE SEATS. THE INVENTION ALSO RELATES TO AN INSTALLATION FOR FIGHTING FIRE, IN PARTICULAR IN A ROOM, CHARACTERIZED IN THAT IT COMPRISES AT LEAST ONE SPRAY HEAD (2) CAPABLE OF PRODUCING A FOG-LIKE LIQUID SPRAY (4) AT A HIGH OPERATING PRESSURE AND HAVING A GOOD PENETRATION POWER, A DRIVE UNIT WITH AT LEAST ONE HYDRAULIC ACCUMULATOR (11;31) CHARGEABLE TO A HIGH INITIAL DRIVE PRESSURE, THAT THE LIQUID IS ARRANGED TO BE DRIVEN OUT THROUGH A TUBE (15;32) WHICH STARTS AT THE BOTTOM PORTION OF THE LIQUID SPACE (20) OF THE ACCUMULATOR (11;31) TO AND EXTENDS THROUGH THE GAS SPACE (19) OF THE ACCUMULATOR (11;31) TO THE OUTLET (14;35) THEREOF, AND THAT SAID TUBE (15;32) HAS AT LEAST ONE APERTURE (17,18) IN ITS WALL, AT A PREDETERMINED DISTANCE FROM THE OUTLET END OF THE TUBE (15;32) AND WITH A PREDETERMINED DIAMETER, SO THAT DRIVE GAS FLOWS INTO THE TUBE (15;32) THROUGH SAID AT LEAST ONE APERTURE (17,18) IN THE WALL, WHEN THE LIQUID LEVEL IN THE HYDRAULIC ACCUMULATOR (11;31) HAS DESCENDED TO SAID APERTURE, IN ORDER TO THEREBY SCATTER THE INITIALLY PRODUCED FOG-LIKE LIQUID SPRAY (4) INTO A TURBULENT LIQUID FOG (9)..(FIG. 4)
|
