| 摘要 |
An evacuation device (1) for transporting gas and/or particles out of a room (R) comprises mounting means (7, 9) for installation in a wall (3) of the room such that an inflow end (6) is located on the face of the wall (3) that faces the inside of the room and an outflow end (8) is located outside the room. The evacuation device comprises a duct (2) extending between the inflow end and the outflow end, and a barrier (12) is releasably attached in the duct to seal it when the evacuation device is in a standby state. Driving means (21) are arranged to guide at least one flow of fluid (W) through the duct when the evacuation device is in an activated state. In one embodiment, the duct comprises a venturi nozzle, and the driving means comprise a number of water nozzles located upstream of the inflow end of the venturi nozzle. |
