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在电力工业确定以大、中、小并举,以大机组为骨干的发展方针下,国产12.5万瓩,20万瓩带有一次中间再热的大型汽轮机相继投入运行。30万瓩机组正在安装,60万砥机组正在设计,这些充分反映了我国电力工业生产进入了新的阶段。针对大型汽轮机试运中发生的通流部份轴向间隙消失,动静部份磨擦的新问题,我们第一次在我我所自制的电阻一电容网络计算台上,进行了20万瓩机组在稳定工况下的汽缸、转子温度场的计算。并根据温度场计算了汽缸、转子热膨胀和相对膨胀差。计算
In the power industry to determine the big, medium and small and also to large units as the backbone of the development guidelines, the domestic 125,000 瓩, 200,000 瓩 with a reheat of large-scale steam turbine have been put into operation. 300,000 units are being installed and 600,000 units are being designed. These fully reflect the fact that China's power industry has entered a new phase. Aiming at the new problem of the disappearance of the axial clearance and the static and dynamic friction in the flow passage during the trial operation of large-scale steam turbines, for the first time, on our computer-made resistance-capacitance network computing platform, we conducted 200,000 units Calculation of Cylinder and Rotor Temperature Field under Stable Working Conditions. Based on the temperature field, the thermal expansion and relative expansion difference of cylinder and rotor were calculated. Calculate