Disk hub corrosion damages of a Beilun Power Plant's circulation pump were detected during the pump's overhaul.

Causes of deviation of the main steam flow value indicated in DAS system for Beilun power plant unit 2 are analysed. The problems are found in the original calculation model.

The causes for local overtemperature of high temperature reheater of 600 MW boiler in Beilun Power Plant and that bypass retrofit could not realize the expected effect are analyzed;