直接空冷机组性能评估技术研究

Performance Evaluation on Directly Air-Cooled Power Units

火电空冷机组及其系统的性能评估是在其投入运行一年内应进行的工作,以鉴定机组功率与系统的性能是否达到设计要求。阐述了空冷汽轮机结构特点与性能初评方法;结合实例说明了空冷凝汽器与空冷风机群的性能评估方法及直接空冷系统综合性能系数的计算。对我国这一评估技术的开展提出几点建议。

Performance evaluation on the air-cooled fossil fuel-fired power unit and its related systems should be carried out within one year since being put into operation, so as to verify whether the unit power and the systems＇ performance meet relevant design requirements. An introduction is being made to the structural features and performance pre-evaluation way for air-cooled turbine units. Combined with actual examples, performance evaluation ways for air-cooled condensers and air-cooling fan groups as well as how the comprehensive performance ratio of direct air-cooling systems is calculated, are described in detail. In addition, a number of proposals for development of similar domestic evaluation technologies are presented.