舰用汽轮机高压转子换热边界条件的确定

Evaluation of heat transfer boundary conditions for a marine high-pressure steam turbine rotor

该文依据某型汽轮机高压缸设计参数作变工况计算 ,获得各种转速下转子各部位的蒸汽参数 ,并由此得到各部位的换热系数。所得结果可用于转子的动态温度场和应力场计算以及疲劳寿命预测。

The off design performance of a marine high pressure steam turbine was calculated using the design data in this paper.Therefore,the steam parameters along the rotor at various rotation speeds were obtained,and the heat transfer coefficients calculation along the rotor were performed.The results presented here in can be used to predict transient temperature field,transient stress field,and fatigue lifetime of the steam turbine rotor.