DOUBLE-SIDED SUCTION RADIAL-FLOW FLUE-GAS PUMP Russian patent published in 2011 - IPC F04D17/08 

FIELD: engines and pumps.

SUBSTANCE: flue-gas pump comprises volute casing, impeller with vanes arranged between main and cover conical disks, suction branch pipes, suction pockets and guide vanes. Width b₁ of impeller inlet makes 21-23% of impeller diametre D. Width b₂ of impeller outlet makes 11-13% of D. Radius R of intake section of impeller cover disk makes 4-6% of D. Volute casing opening A makes 50-70% of D. Size B of volute casing outlet section in the plane of impeller rotation makes 60-90% of D, where b₁ is the distance at the inlet from impeller main disk to impeller cover disk inlet plane, b₂ is the distance from impeller main disk to its cover disk along vane rear edge.

EFFECT: reduced capital and operating costs.

4 dwg