本文主要介绍水轮机旋转零件经热套配合后的应力计算公式,并提出选择恰当的热套配合过盈量,以使热套配合零件的应力不超过许用值,并保证水轮机在飞逸转速工况下,热套配合零件不产生脱离现象,从而达到机组运行的可靠性。 This article mainly introduces the stress calculation formula of the rotating parts of the turbine after being matched by the thermowells and puts forward the choice of the appropriate thermowells with the interference so that the stress of the thermowells with the components does not exceed the allowable value and ensures that the turbine runs at the fledgling speed Under the circumstances, the heat sleeve with the parts do not produce the phenomenon of detachment, so as to achieve the reliability of the unit operation.