1000MW超超临界机组增容可行性分析

Feasibility Analysis on Capacity Increase of a 1 000 MW Ultra-supercritical Unit

以鸿山电厂二期1 000 MW超超临界机组成功增容为基准,通过对比两台机组的设计背压、主蒸汽进汽量等机组参数,探讨增容后对机组的影响,分析一在建1 000 MW超超临界机组增容的可行性。结果表明:在基建期实施机组增容至1 050 MW,将造成综合成本大幅度增加,建议待机组投产后,根据实际运行情况确定机组带负荷能力。

Based on the successful capacity increase of 1 000 MW ultra-supercritical unit in Phase II of Hongshan Power Plant,the feasibility on capacity increase of a 1 000 MW ultra-supercritical unit was analyzed by comparing the parameters of two units such as the design backpressure and the main steam flow and exploring the effects on the unit after the capacity increase.The result shows that the comprehensive cost will increase significantly while the unit capacity increases to 1 050 MW during capital construction.It is suggested that the capacity of the unit should be determined according to the actual operation after the unit putting into operation.