The shaft displacement of Hangzhou Steam Turbine is high
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The turbine is a extraction-type steam turbine; it operates in full condensation mode at the beginning, with the shaft displacement increasing gradually； Random selection will be used later; the displacement remains stable for about 2-3 months ； It’s rising slowly again; I’m asking the experts here to analyze the reasons.
It is recommended to measure the thrust bearing clearance and the levelness of the main unit. At this stage, it can only be kept in use; during this time, preparations for the maintenance work need to be planned. For reference.
It has been in operation for several years; have you considered the possibility of scaling? What about the pressure in the wheel chamber, the parameters of steam quality, and the operating conditions of the driven machine?