Noise abatement device and method for air-cooled condensing...

F - Mech Eng,Light,Heat,Weapons – 01 – K

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F01K 9/04 (2006.01)

Patent

CA 2514319

A noise abatement device and rpethod to direct flow in a predetermined manner to substantially reduce the aerodynamic noise and structural vibrations produced by steam entering an air-cooled condenser (16) in a power generating system. The interactive flow between the spargers (42 c-d) that produces the aerodynamic noise and structural vibrations is largely eliminated by prohibiting fluid flow through selected flow regions (70a, 70b) within the spargers (42 c-d). The spargers include a stack of disks with fluid passageways., The fluid passageways are -interrupted with continuous and undivided regions of the sparger to direct radial-flow away from adjacent spargers, substantially eliminating the interactive flow.

L'invention concerne un dispositif de réduction du bruit et un procédé permettant de diriger le flux de façon prédéterminée, destinés à réduire sensiblement le bruit aérodynamique et les vibrations structurales produits par la vapeur entrant dans un condenseur refroidi par air dans un système électrique. Pour éliminer sensiblement le flux interactif entre les moyens de réduction de pression produisant le bruit aérodynamique et les vibrations structurales, il suffit de bloquer l'écoulement fluide dans des zones d'écoulement sélectionnées des moyens de réduction de pression. Ces moyens de réduction de pression comprennent une pile de disques avec des passages d'écoulement. Ces passages d'écoulement sont interrompus par des zones continues et non divisées du moyen de réduction de pression de manière à éloigner l'écoulement radial des moyens de réduction de pression adjacents, ce qui élimine sensiblement le flux interactif.

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