SUPPRESSOR OF AERODYNAMIC NOISE OF CENTRIFUGAL FANS

摘要

Suppressor of aerodynamic noise of centrifugal fans consisting of pipes, cones, circular screen, cover. It is additionally equipped with a second cone of smaller diameter, to the inner surface of which is welded guide plate, creating a rotational movement of the gas mixture along a helical line with left and right direction of rotation, to allow for equal gas volume through the area, separated by cones, the diameter of the smaller cone is equal to 0.7 of the diameter of the larger cone.