Liquid atomizer unit having a double nozzle for fire extinction
AssigneeVID ApS
InventorCarsten Palle
Life of this patent
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Abstract
When, according to the invention, a liquid atomizer unit for fire extinction is provided with a double nozzle system for liquid atomization and spreading of atomized liquid, where one nozzle is configured as a fully circular slot (14), and where the other nozzle is configured as a centrally arranged hole (17) having a baffle (18) disposed in the centre line in front of the nozzle hole (17), and where a mandrel is incorporated, extending through the cavity of the system, said mandrel (7) being penetrated by at least one slot or hole (11), all of which are arranged within the cavity, a high degree of projection is achieved for the sensitive parts of the unit, and moreover the coverage area of the water mist nozzle is optimum at a water pressure of between 200 and 2000 kPa.
Claims10
A liquid atomizer unit having a double nozzle system for fire extinction, comprising a cup (1) with a bottom (2), said cup (1) containing a mandrel (7) which extends through the cavity of the cup, said mandrel (7) comprising a centre hole (10) as well as an end (16) comprising an elevation (21) with a central hole (17) connecting the centre hole (10) of the mandrel to the atmosphere, a baffle (18) being arranged on the central shaft of the centre hole in front of and in parallel with the centre hole (10), said baffle (18) being disposed on a leg (19) and constituting, in combination with the centrally located hole (17), one nozzle of the liquid atomizer for liquid atomization, characterized in that the mandrel (7) is penetrated by one or more slots or holes (11), all of which are positioned within the cavity of the cup, and whose total area is larger than the cross-sectional area of the centre hole (10) of the mandrel, and that, outside the periphery (12) of the cup and above the first nozzle, the mandrel (7) comprises a face (13) which forms a fully circular gap (14) between the peripheral face (12) of the cup and the mandrel face (13), said gap (14) constituting the second nozzle of the liquid atomizer for spreading atomized liquid from the first nozzle in an entire 3600 circle.
Dependencies are inferred from the claim text.