Method for spraying a medium and spraying nozzle

Details Method for spraying a medium and spraying nozzle Method for spraying a medium and spraying nozzle

A - Human Necessities

62

C

A62C 31/02 (2006.01)

Patent

CA 2589504

A method for spraying a medium mist, especially a medium mist used in firefighting, over a large area, in which method at least two sprays of medium mist are formed, of which a first spray (S1) is within a second medium mist spray (S2) at least at or near the spraying point. During the formation of the sprays (S1, S2), the medium is set into a swirling motion at least before the discharge opening (5, 13) of the nozzle used to form each spray (S1, S2) and/or at least before the sprays (S1, S2) are mixed with each other, and that the swirling directions of the medium in different sprays (S1, S2) are opposite to each other, whereby a preferably homogeneous mist spray spread over a large area is achieved.

L~invention concerne un procédé de pulvérisation d~une brume de milieu de pulvérisation, ladite brume étant en particulier destinée à la lutte contre l~incendie, sur une grande zone. Dans le procédé de l~invention, au moins deux pulvérisations de brume de milieu de pulvérisation sont formées, dont la première (S1) est dans la seconde pulvérisation de brume de milieu de pulvérisation (S2) au moins au niveau ou à proximité du point de pulvérisation. Pendant la formation des pulvérisations (S1, S2), un mouvement tourbillonnant est imparti au milieu de pulvérisation au moins avant l~ouverture de déchargement (5, 13) de la buse utilisée pour former chaque pulvérisation (S1, S2) et/ou au moins avant que les pulvérisations (S1, S2) ne soient mélangées l~une à l~autre et que les directions de tourbillonnement du milieu de pulvérisation dans les différentes pulvérisations (S1, S2) ne soient opposées l~une à l~autre, moyennant quoi on obtient une pulvérisation de brume de préférence homogène répandue sur une grande zone.

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