Device and process for generating carbon dioxide snow

Details Device and process for generating carbon dioxide snow Device and process for generating carbon dioxide snow

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 1/00 (2006.01) B05B 7/00 (2006.01) C01B 31/22 (2006.01) F25C 3/04 (2006.01) F25D 3/12 (2006.01)

Patent

CA 2463819

A device useful for delivering carbon dioxide snow comprises a supply conduit (1) for providing a flow of pressurized carbon dioxide, a plurality of tubes (3) disposed side by side, each tube (3) having a constant cross-sectional configuration and area throughout its length, each tube (3) having a first end (4) the peripheral edges of which are sealed to the outside of the conduit wall and a second end (5) which is open to the ambient atmosphere, and a plurality of apertures (7) for carbon dioxide to flow through the conduit wall and expand to solids and vapor, there being at least one aperture (7) communicating with the interior of each of said plurality of tubes (3).

La présente invention porte sur un dispositif servant à diffuser de la neige carbonique et comprenant : une conduite (1) d'amenée servant à acheminer un flux de dioxyde de carbone sous pression ; une pluralité de tuyaux (3) disposés côte à côte, chacun de ces tuyaux (3) présentant une configuration et une surface de section transversale constante sur sa longueur, et comportant une première extrémité (4) dont les bords périphériques sont scellés sur la partie extérieure de la paroi de la conduite et une seconde extrémité (5) qui débouche sur l'atmosphère environnante ; et une pluralité d'orifices (7) permettant au dioxyde de carbone de s'écouler dans la paroi de la conduite et de se dilater en solide et en vapeur, au moins un de ces orifices (7) étant alors en communication avec l'intérieur de chacun de ces tuyaux (3).

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