进一步提高超超临界机组蒸汽参数应注意的问题  

Problems Paid Attention to Raise the Ultra Supercritical Units Steam Parameters

作　　者：朱宝田[1] 周荣灿[1] 

机构地区：[1]西安热工研究院有限公司,陕西省西安市710032

出　　处：《中国电机工程学报》2009年第S1期95-100,共6页Proceedings of the CSEE

摘　　要：论述了进一步提高超超临界机组蒸汽参数应注意的问题,尤其是关键部件高温材料的问题。从技术基础、效率及选材考虑,提出目前高效超超临界一次再热机组选用28 MPa/600℃/620℃的参数是合适的;二次再热机组选用30 MPa/600℃/620℃/620℃的参数是合适的。进一步提高超超临界机组蒸汽参数要充分认识蒸汽参数提高后的技术风险,研究和解决关键技术问题。Problems paid attention to raise the ultra supercritical units steam parameters are described,especially the problems of high-temperature material of key components. Form technical basis,efficiency and choice of material this paper put forward that,at present highly efficient ultra supercritical one reheat units choosing the parameter of 28MPa/600℃/620℃is appropriate;Double reheat units choosing the parameter of 30MPa/600℃/620℃/620℃is appropriate.Further improving the ultra supercritical units steam parameters,it is needed to fully understand technological risks after steam parameters being improved,and to research and solve key-technology problems.

关 键 词：超超临界机组 蒸汽参数 材料 关键技术 

分 类 号：TM621[电气工程—电力系统及自动化]