Abstract:

Abstract:Taking the 300MW turbine generator set of Huadian Xiangyang Power Generation Company Limited as example, the potential safety hazard of abnormal operation of sealing oil system during the unit startup, shutdown and normal operation caused by operation, maintenance, oil quality, oil temperature and other reasons was analyzed. Relevant countermeasures were put forward, which are helpful to ensure safe, economical and stable operation of the power plant.

Key words: Key words:gas replacement, differential valve；balance valve, sealing bush, hydrogen purity