摘　要：论述了超超临界机组所面临的突出问题--管道的蒸汽侧氧化及汽轮机叶片的固体颗粒侵蚀(SPE)的产生及对机组的危害,阐述了对SPE进行全方位全过程综合防治的思路:通过锅炉的合理选材,选择塔式炉,配置大容量旁路,采用无调节级汽轮机及合理的进汽结构,对汽轮机叶片作抗冲蚀处理,大幅降低热控保护的误动概率及锅炉强停次数,选择合理的启动和运行方式,慎用减温喷水等,能显著降低锅炉蒸汽侧氧化及氧化皮脱落造成的危害,极大地缓解汽轮机的固体颗粒侵蚀问题.
关键词：超超临界机组;蒸汽氧化;固体颗粒侵蚀;塔式锅炉
分类号：TK263.3;TM621.8 　文献标识码：A
文章编号：1004-9649(2007)01-0069-05

Comprehensive prevention of steam oxidation and solid particle erosion for the ultra-supercritical unit

FENG Wei-zhong　

作者简介：冯伟忠(1954-),男,上海人,高级工程师,副总经理,从事电厂基建工程及生产技术管理工作.E-mail:002@wgq3.com
作者单位：冯伟忠（上海外高桥第三发电有限责任公司,上海,200137）　

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