高转速汽轮机调节级叶片强度分析及结构优化

详细信息    查看全文 | 推荐本文 |

英文篇名：Strength Analysis and Structural Optimization for Governing Stage Blade in High Speed Turbine 作者：吴辉贤 英文作者：Wu Huixian;Hangzhou Chinen Steam Turbine Power Co.,Ltd; 关键词：调节级叶片 ; 强度分析 ; 结构优化 ; 振动性能评估 英文关键词：governing stage blade;;strength analysis;;structural optimization;;evaluation of vibration characteristics 中文刊名：HGSB 英文刊名：Process Equipment & Piping 机构：杭州中能汽轮动力有限公司; 出版日期：2019-06-15 出版单位：化工设备与管道 年：2019 期：v.56;No.312 基金：杭州中能汽轮动力有限公司新产品开发,科研技术攻关项目(X14-07-01) 语种：中文; 页：HGSB201903010 页数：5 CN：03 ISSN：31-1833/TQ 分类号：47-51

摘要

利用ANSYS软件对公司新开发的高速汽轮机调节级叶片进行强度分析,分析后发现原设计叶片存在强度安全隐患。根据原叶片的应力分布状态,在机组通流保持不变的情况下,对叶根和轮缘结构进行结构优化和强度分析,分析结果表明优化后的叶片强度达到设计要求,同时在机组的调速范围内,叶片的振动性能也满足设计要求。
        In this article, by using ANSYS, the strength of governing stage blade in newly developed high speed turbine was analyzed. It was found that there existed strength risk in originally designed blade. Under the condition in which flow volume in machines is unchanged and based on the stress distribution in original blade, structural optimization for the blade root and impeller edge was carried out. Then it was shown from analysis result that the strength of blade has been satisfied for design requirement. Also, the anti-vibration characteristic of the blade has reached the requirement within the speed governing stage scope of the machine set.

引文

[1]吴非文.火力发电厂高温金属运行[M].北京:水利水电出版社,1979.
    [2]丁有宇.汽轮机强度计算手册[M].北京:中国电力出版社,2010.
    [3]谢浩,李锋,孟庆集.汽轮机叶根轮缘弹塑性接触有限元应力分析[J].汽轮机技术,2003,45(6):343-346.
    [4]章巧芳,王江恩,冯琳.三维接触有限元分析在汽轮机设计中的应用[J].汽轮机技术,2006,48(5):343-345.
    [5]任涛,韩方亮,王坤,等.汽轮机末叶片叶根强度分析与优化[J].汽轮机技术,2012,54(4):267-272.