| 摘要 |
In accordance with a method for making at least one hole in roofs (1), walls, etcetera, in case of fire (2) in buildings or the like the hole or holes are produced by cutting, using a pressurised liquid (3) which while cutting is sprayed into the space (4) on fire in the shape of a jet (5) which rapidly evaporates and in doing so contributes to extinguishing the fire (2), the combustion gases (6) being vented through the cut hole or holes (25). In equipment (7) designed for the implementation of the method there is provided a source of pressurised medium (8) having an outlet for a pressurised liquid (3), a conduit (10), and a nozzle (11) having an inlet (12) and outlet (13). The conduit is connected at one of its ends to the outlet of the source of pressurised medium (8) and at its opposite end to the inlet (12) of the nozzle (11) for supply of pressurised fluid from the source of pressurised medium to the outlet (13) of the nozzle (11), from which the liquid (3) in the form of a jet (5) is caused to be discharged and to be directed towards the roof (1), the walls, etcetera, in order to cut through said roof, wall, etcetera, to form said number of holes, and in connection with said cut-through to be sprayed into the space (4) on fire in order to assist in extinguishing the fire (2). |
