F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 25/16 (2006.01) F04D 29/66 (2006.01)
Patent
CA 2654972
The present invention relates to a method of reducing or elimination pressure pulsations and noise created by blowers in a gas separation plant. The method employs two identical and 180° out of phase blowers (6, 7) synchronized together to provide both a large flow of air and active noise cancellation to eliminate pressure pulsations. The two blowers (6, 7) are synchronized in such a way that pressure pulses created by one blower will actively be cancelled by the pulses generated by the other blower. At the same time, both blowers (6, 7) will work together to force a large quantity of gas flow in or out of the plant. The twin set of blowers can be used for feed or vacuum applications in the plant. This way large tonnage plant capital costs can be reduced by eliminating the need for an expensive silencer and a single large custom-made blower.
Procédé de réduction ou d'élimination d'impulsions de pression et de bruit provenant de soufflantes dans une installation de séparation de gaz. On fait appel à deux soufflantes identiques et hors phase de 180 degrés synchronisées pour assurer un large flux d'air et une annulation de bruit active visant à éliminer les impulsions de pression. La synchronisation est telle que les impulsions créées par une soufflante seront annulées activement par les impulsions induites par l'autre soufflante. Simultanément, les deux soufflantes travaillent ensemble pour forcer l'extraction d'une grande quantité de flux de gaz hors de l'installation. Les soufflantes jumelles peuvent servir à des applications d'injection ou de vide dans l'installation. Ainsi, on peut réduire les frais importants en capital d'installations à fort tonnage en supprimant le silencieux onéreux et en n'installant pas la grande soufflante unique spécialement adaptée aux besoins propres d'une installation.
Celik Cem E.
Smolarek James
Praxair Technology Inc.
Sim & Mcburney
LandOfFree
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