超超临界汽轮机汽流激振研究现状与展望

Survey and Outlook on the Research o of the Steam Excitation of Superior Ultra-critical Steam Turbine

对当前国内外汽流激振的研究现状进行了分析和综述,分析和总结了汽流激振的机理、特征,并对汽流激振的国内外研究发展概况进行了介绍。总结了当前国外一些厂家超超临界汽轮机组所采用的一些汽封结构形式;归纳了防汽流激振的有效措施,最后对超超临界汽轮机汽流激振未来的研究方向进行了展望。

A survey on the research of the steam excitation of the superior ultra-critical steam turbine is given in this paper. The mechanism of the steam excitation is analyzed and summarized. The developing status of the research of the steam excitation is also introduced. Some types of effective seal structures of foreign turbine manufacturer are presented. The ways to preventing steam excitation are also summarized. Finally, the future research orientation of steam excitation is also discussed.