1000 MW超超临界机组中压转子冷却技术经济性分析

摘要

基于热力系统的分析计算方法,对1000MW超超临界机组中压转子设计采用冷却技术的目的、不同冷却技术的工作原理、技术特点以及经济性等进行了全面的论述及分析.结果表明,采用外部蒸汽冷却技术的经济性最好,切向涡流冷却技术的经济性次之,冷却抽汽技术的经济性最差.%Taking a high performance 1000MW ultra super-critical unit as a example.Based on the method of thermal dynamic system analyzation and calculation, detail analysis and discusses on operation principle, technical characteristics and thermal economy of different IP rotor cooling technologies were conducted.The results show that the thernal economy of external steam cooling technology is the best, then is Tangential vortex cooling technology, and the extraction cooling technology is the worst.