Device for generating a gas-droplet stream and valve

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 7/26 (2006.01) A62C 31/02 (2006.01) B05B 7/04 (2006.01) F16K 11/048 (2006.01)

Patent

CA 2327803

The present invention relates to a device for generating a gas-droplet stream, wherein the said device includes a gas-dynamic nozzle (1), which is connected to a chamber (2) for mixing gas and liquid and containing a liquid flow dispersion system (3). The chamber (2) is connected to a liquid and gas supply system through a controlled valve, wherein the said valve ensures an early inlet of a gas flow prior to that of the liquid when the device is turned on, and cuts off the liquid supply when the said device is turned off. The valve comprises two closure members (5,6) which interact with the seats provided on the walls of sealed chambers (8,9) and which communicate respectively with liquid and gas supply ducts (10,11). The member (5) is rigidly connected to a rod (7) so as to be brought in contact with the seat in the gas supply chamber (8), while the member (6) is coaxially mounted on the said rod (7) so as to be capable of displacement along the same upon interaction with a stop.

Cette invention concerne un dispositif permettant de créer un jet de gaz et de gouttelettes, lequel dispositif comprend une buse à dynamique des gaz (1) qui est connectée à une chambre de mélange (2) de gaz et de liquide dans laquelle se trouve un système de dispersion (3) du flux de liquide. La chambre (2) est connectée à un système d'alimentation en liquide et en gaz par l'intermédiaire d'une soupape commandée. Cette soupape va assurer l'admission préalable d'un flux de gaz avant celle du liquide lorsque l'on met le dispositif en marche, et interrompre préalablement l'alimentation en liquide avant d'interrompre celle en gaz lorsque l'on arrête le dispositif. La soupape comprend deux organes de fermeture (5, 6) qui entrent en interaction avec des sièges disposés sur les parois de chambres hermétiques (8, 9), et qui communiquent respectivement avec des conduites (10, 11) d'alimentation en liquide et en gaz. L'organe (5) est fixé de manière rigide sur une tige (7) de manière à pouvoir entrer en contact avec le siège situé dans la chambre d'admission en gaz (8). L'organe (6) est quant à lui monté coaxialement sur la tige (7) de manière à pouvoir se déplacer le long de celle-ci lors de son interaction avec une butée (12).

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