E3S Web Conf.
Volume 350, 2022International Conference on Environment, Renewable Energy and Green Chemical Engineering (EREGCE 2022)
|Number of page(s)||5|
|Published online||09 May 2022|
Analysis and Treatment of Flue Duct Vibration of 1000MW Generator Set with High Load
Datang Central South Electric Power Test Research Institute, Zhengzhou 450000, China
* Corresponding author: firstname.lastname@example.org
In view of the serious flue duct vibration problem of the outlet of a 1000MW unit with a load of 80%BRL and above, combined the vibration test with the calculation of the acoustic standing wave frequency, the cause of the flue duct vibration was analyzed and determined. A modification plan is proposed to install clapboards to change the standing wave frequency of the flue duct and keep it away from the measured resonance frequency. After the clapboards are installed, the flue duct vibration frequency of the induced draft fan outlet is dispersed from the two main frequencies of 61.3Hz and 61.4Hz before the clapboards were installed to 6.88Hz~204Hz; the maximum amplitude of the flue duct is reduced from 105.0μm to 12.6μm, and the problem of the flue duct vibration is fundamentally solved. This case provides a new idea for solving the problem of vibration of the flue duct in the large-scale power station boiler.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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