汽轮机轴向位移异常的原因分析与消除

CAUSE ANALYSIS OF AXIAL DISPLACEMENT ABNORMALITY CONCERNING A STEAM TURBINE AND ELIMINATION THEREOF

叙述了抽汽背压式汽轮机因推力轴承部套的瓦枕球面体表面配合间隙调整的微小误差 ,导致轴向位移失常的原因 ,通过对推力轴承球面体径向配合重新调整 ,使轴向异常位移消除 。

The causes leading to axial displacement abnormality of an extraction backpressure steam turbine have been described. The said abnormality was appeared due to miniature error in gap adjustment of spherical body surface fit concerning shoe bolster of the thrust bearing assembly. Through axial fit readjustmen of the thrust bearing's spherical body, the said axial displacement has been eliminated.