摘要
某大型轴流式压缩机转子采用2级轮毂结构。由于其体积庞大,结构特殊,加工制造过程中会产生较大的不平衡量。为减少整个压缩机轴系的振动,确保机组的安全稳定运行,压缩机转子动平衡精度需要达到G1.6等级。提出了一种轴流式压缩机转子的分步骤动平衡方案,通过2级轮毂分别单独动平衡、主轴与2级不带叶片的轮毂装配后动平衡、转子装配叶片后动平衡等步骤,减小不平衡量,以提高压缩机转子最终动平衡精度。该方法可以使压缩机转子动平衡结果满足设计要求。研究成果可为带轮毂结构的转子动平衡提供参考。
The rotor of a large scale axial compressor features a two-stage hub structure.Due to its large size and unique structure,significant unbalance will be generated during manufacturing process.To reduce the vibration of the entire compressor shaft system and ensure the operation safety and stability of the unit,the dynamic balance accuracy of the rotor is required to achieve G1.6 level.A step-by-step dynamic balancing method for the axial compressor rotor was proposed:firstly,take dynamic balancing upon the two hub stages separately;secondly,assemble the two-stage hub without blades to the rotor and then carry out dynamic balancing;thirdly,take dynamic balancing upon the rotor with blades assembled.Therefore,the unbalance was reduced and the final dynamic balancing accuracy was improved.The design requirements of dynamic balancing of compressor rotor can be met with this method being used.This research result can provide reference for the dynamic balancing of rotors with hub structures.
作者
谢东虎
曹红波
李新杰
XIE Donghu;CAO Hongbo;LI Xinjie(Shanghai Electric Power Generation Equipment Co.,Ltd.Turbine Plant,Shanghai 200240,China)
出处
《热力透平》
2025年第2期145-148,共4页
Thermal Turbine
关键词
压缩机转子
不平衡量
动平衡
轮毂结构
compressor rotor
unbalance
dynamic balancing
hub structure
