| 摘要 |
FIELD: steam turbines having rotor bearing in steam outlet section. SUBSTANCE: casing has in bottom part bearing supporting ring 7, oil pan 9 whose vertical walls 10 are joined with supporting ring 7, central hub 3 joined with bottom part of casing through vertical ribs 13, steam lines 12 of end seal 4 in rotor 5. Vertical walls 10 of oil pan 9 are joined with hub 3, passed through its wall, and joined inside casing with vertical ribs 13 arranged in same plane as walls 10. Two tubes 11 placed at horizontal split joint in vicinity of supporting ring 7 on each side of turbine axis interconnect hub 3 and side walls of casing in crosswise direction. Steam lines 12 of rotor end seal 4 are mounted inside tubes 11. EFFECT: reduced metal input, facilitated maintenance of bearing, and eliminated oil heating in oil pan due to heat transfer from steam line. 2 cl, 2 dwg |
