CENTRIFUGAL SMOKE EXHAUSTER WITH RADIALLY TERMINATING BLADES Russian patent published in 2007 - IPC F04D17/08 F04D29/28 

FIELD: ventilator engineering, namely, construction of centrifugal smoke exhauster, which may be used in gas cleaning systems in metallurgy and during production of building materials, and also for kitting steam boilers of heat and power stations.

SUBSTANCE: centrifugal smoke exhaust consists of spiral body, input branch pipe, guiding machine and working wheel. Working wheel has 24 radially terminating blades with exit angle equal to 90°, circles drawn along an arc with a radius equal to 34% of external diameter of working wheel, measured along exit edges of blades. Diameter of entrance into working wheel equals 62% of external diameter of working wheel. Width of working wheel at exit equals 13% of external diameter of working wheel. Angle of inclination of surface of covering disk to rotation plane of working wheel equals 15°.

EFFECT: ensured increase of efficiency from 70% to 77% for smoke exhauster with radially terminating blades, which is used for moving substances with dust, prone to sticking to blades of working wheel, which is achieved due to optimal selection of dimensions of working wheel of smoke exhauster.

3 dwg