LIU Zhanhui, LU Yibing, LIU Jingyu, et al. VIBRATION AND STALL CAUSED BY ABRASION OF INDUCED FAN BLADE:DIAGNOSIS AND PROPOSAL[J]. Thermal power generation, 2012, 41(8): 51-53.
LIU Zhanhui, LU Yibing, LIU Jingyu, et al. VIBRATION AND STALL CAUSED BY ABRASION OF INDUCED FAN BLADE:DIAGNOSIS AND PROPOSAL[J]. Thermal power generation, 2012, 41(8): 51-53.DOI:
引风机叶片磨损引起振动及失速的诊断处理
摘要
某引风机出现振动超标、出力不足及抢风等故障
分析认为是烟气中粉尘含量较高
粉尘对引风机叶轮及叶片的不均匀磨损造成转子质量不平衡诱发风机振动
并引起风机特性改变造成出力不足及失速"抢风"。对此
进行了叶片修复及动平衡处理。
Abstract
Failures like overproof vibration
insufficient output and air-snatching occurred on induced draft(ID) fans in a power plant.Analysis indicate that
mass imbalance of the rotor causes the vibration
due to the uneven abrasion on impeller and blades of ID fans by dust
which has a relatively high content in flue gas.So the ID fan performance changes and result in insufficient output and stall.Thus
the repair and dynamic balance treatment for blades is conducted.