| 摘要 |
mechanical engineering; compressors. SUBSTANCE: rotor of two-side suction centrifugal blower has shaft, impeller with main and cover disks and working blades between the disks, thrust conical disks holding impeller on shaft and dust dispersers installed on main disk at both sides before working blades and made in form of truncated cones whose smaller bases are pointed to side of cover disks. Ring grooves are made on surface of cones with conical and cylindrical side surfaces at variable angle between surfaces and with width increasing in direction to smaller bases of cones. Angles of inclination of generatrices of thrust conical disks are smaller than angles of inclination of cone surfaces relative to axis of shaft. Cones are interconnected through larger bases and are installed with their smaller bases on larger bases of thrust conical disks. EFFECT: improved reliability of operation. 4 cl, 5 dwg |
