B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 1/22 (2006.01) B01D 1/06 (2006.01) B01D 45/16 (2006.01)
Patent
CA 2422943
A method and a device for the production of pure steam, wherein steam produced in downflow evaporation tubes is carried upwards in a spiraling path. In the outer wall of the spiral path, openings are provided for capturing droplets carried to the wall by centrifugal force. A radial flow through the openings is generated as steam condenses on a cooled surface outside the openings. Impurities are enriched in the water phase that forms on the cooled surface, and the water phase flows downwards by gravity to form a pool of reject water, a flow of which is constantly removed from the process. Pure steam is withdrawn from above the spiral path.
L'invention concerne un procédé et un dispositif de production de vapeur pure, dans lequel la vapeur produite dans des tubes d'évaporation à courant descendant est entraînée vers le haut dans un chemin en spirale. La paroi extérieure du chemin en spirale comporte des ouvertures qui attirent les gouttes amenées sur la paroi sous l'action de la force centrifuge. Un écoulement radial traversant les ouvertures et transformé en vapeur se condense sur une surface refroidie à l'extérieure des ouvertures. La phase aqueuse qui se forme sur la surface refroidie est riche en impuretés. Elle s'écoule vers le bas sous l'action de la gravité pour former une masse d'eau de rejet dont un courant est régulièrement éliminé du processus. La vapeur pure obtenue est extraite en haut du chemin en spirale.
Mcfadden Fincham
Steris Europe Inc. Suomen Sivuliike
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