300MW机组复合凝结水真空式除氧系统方案研究

The Optimization of the Composite Condensate Vacuum Deaerator System of 300MW Unit

以300 MW机组为研究对象,针对该类型机组采用汽动给水泵,小汽机排汽直接排入凝汽器,其热量没有被充分利用这一特点,对其进行无除氧器改造研究。提出了采用这种复合凝结水真空式除氧系统的方案,并对改造方案进行了热经济性分析,从而实现了热经济性最优,为300 MW机组的节能改造提供指导。

This thesis mainly studied the 300 MW unit. This type of unit uses steam - driven feed water pump,its exhaust steam is directly pumped into the condenser with small steam turbine and its heat has not been fully taken advantage of. To solve these questions, the author puts forward a project that uses the Composite Condensate Vacuum Deaerator System.