1000MW超超临界机组无电动泵启动方式探讨

A Study on the Start Mode of the 1000MW USC Unit Without an Electrically-driven Feed Pump

通过对汽动给水泵启动方式的分析,在机组启停过程中,由汽动给水泵代替电动给水泵运行,不仅降低了机组厂用电率,更重要的是简化了机组启停操作,提高锅炉给水系统运行的安全性和经济性。

Based on the analysis of the start mode of the 1000MW USC unit with a steam-driven feed pump,this article probes into a new start mode of replacing the electrically-driven feed pump with a steam-driven one during the start-stop process of the unit,which can reduce the station service power consumption rate,simplify the start-stop operation of the unit and enhance the security and economy of the operation of the water supply system of the boiler.