ANALYZING THE OPERATIONAL MATERIALS ON CRACK FORMATION IN BLADES OF FRANCIS TURBINES AT THE KRASNOYARSK HPP

I. P. Ivanchenko; A. N. Prokopenko

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ANALYZING THE OPERATIONAL MATERIALS ON CRACK FORMATION IN BLADES OF FRANCIS TURBINES AT THE KRASNOYARSK HPP

机译：在Krasnoyarsk HPP的竞争型涡轮机叶片中分析运营材料

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摘要

Equipment of the Krasnoyarsk HPP is considered as an example to analyze the dependence of crack formation in runner blades on the operating conditions of the turbines since their commissioning. It was established that intensive crack formation in blades in the initial (running-in) period was due to manufacturing-induced high residual stresses and internal material defects. The blade failure rate increased with water head and, hence, the output of the hydroelectric units. The absence of cracks in the blades today indicates that the lifetime of the runners has not ended yet.

机译：Krasnoyarsk HPP的设备被认为是分析自调试以来涡轮机的运行条件的旋流器叶片中的裂缝形成依赖性的示例。建立了初始（延期）时期的叶片中的强化裂缝形成是由于制造诱导的高残余应力和内部材料缺陷。叶片失效率随水头而增加，因此水力电量的输出。今天刀片中没有裂缝表明跑步者的寿命尚未结束。

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来源
《Hydrotechnical Construction》 |2020年第6期|671-680|共10页
作者
I. P. Ivanchenko; A. N. Prokopenko;
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作者单位

I. I. Polzunov Scientific and Development Association on the Research and Design of Power Equipment;

I. I. Polzunov Scientific and Development Association on the Research and Design of Power Equipment;

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原文格式 PDF
正文语种 eng
中图分类
关键词
crack formation; blades; runners; operational conditions; lifetime;

机译：裂缝形成;刀片;跑步者;运行条件;寿命;

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1. Solving the runner blade crack problem for a Francis hydro-turbine operating under condition-complexity [J] . Renewable energy . 2020,第Apra期

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机译：弗朗西斯涡轮机转轮叶片间的空化和涡旋
3. Operational modal analysis and wavelet transformation for damage identification in wind turbine blades [J] . Ulriksen Martin D., Tcherniak Dmitri, Kirkegaard Poul H., Structural health monitoring . 2016,第4期

机译：风机叶片损伤识别的运行模态分析和小波变换
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5. Rotor blade operational data analysis methods and applications for health monitoring of wind turbines using integrated blade sensing. [D] . Myrent, Noah J. 2013

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6. Full-Scale Fatigue Testing of a Wind Turbine Blade in Flapwise Direction and Examining the Effect of Crack Propagation on the Blade Performance [O] . Othman Al-Khudairi, Homayoun Hadavinia, Christian Little, 2017

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7. Index Tests Performed on a Francis Turbine from HPP Ruieni [O] . Adrian Cuzmoş, Cosmin Dumbravă, Constantin Viorel Câmpian, 2008

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8. Reversible Francis pump turbines. Improvement of part load performance by changes on the design of impeller blades [R] . Stepanik, H. E. 1991

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ANALYZING THE OPERATIONAL MATERIALS ON CRACK FORMATION IN BLADES OF FRANCIS TURBINES AT THE KRASNOYARSK HPP

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