630℃高效超超临界二次再热机组关键技术研究  

Study on the key technology of 630℃ ultra-supercritical double reheat unit

作　　者：乔加飞 王斌 陈寅彪[2] 郝卫 张俊杰 梁军 

机构地区：[1]神华国华(北京)电力研究院有限公司,北京100025 [2]中国神华能源股份有限公司国华电力分公司,北京100025

出　　处：《煤炭工程》2017年第F05期109-113,共5页Coal Engineering

摘　　要：针对630℃高效超超临界二次再热机组,重点介绍了G115、Sanicro25等新型耐高温材料的性能特点,并对水冷壁、主再蒸汽管道等关键部件的选材方案进行了分析,对630℃机组的关键参数和热力系统进行了研究。分析表明,目前我国的技术发展已足以支撑煤电机组采用630℃初参数,且630℃技术将成为我国高效清洁能源技术发展的重要方向。Aiming at the 630℃ ultra-supercritical double reheat unit, the performance of Gl15 and Sanicro25 is introduced in this paper as new heat-resistant material. Material selection and design scheme of boiler and turbine are discussed when the steam temperature of ultra- supercritical double reheat unit reaches 630℃. Analysis of the cycle parameters and thermal system are performed. The resuhshows that the steam temperature can reach up to 630℃ adopting current material and design scheme, and it will be an important developing direction of the clean energy technology.

关 键 词：G115 Saniero25 630℃ 二次再热 热力系统 

分 类 号：TD-05[矿业工程]