300MW火电厂高调门LVDT防磨纠偏减振改造研究  

Study on Anti-wear,Deviation Correction and Vibration Reduction of LVDT for High Regulating Gate in 300 MW Thermal Power Plant

作　　者：陈晶 CHEN Jing(CHN Energy Shandong Shiheng Thermal Power Co.,Ltd.,Tai’an 271621)

机构地区：[1]国家能源集团山东石横热电有限公司,泰安271621

出　　处：《现代制造技术与装备》2024年第11期34-36,共3页Modern Manufacturing Technology and Equipment

摘　　要：针对机组高压调门线性可变差动变压器(Linear Variable Displacement Transducer,LVDT)运行过程中出现的铁心弯曲、磨损及阀杆断裂等故障,提出一种改进的保护套管设计。通过延长LVDT保护套管,并在保护管顶部和铁心尾部增加防磨减振装置,有效减少LVDT铁心弯曲和断裂的发生,延长LVDT的使用寿命,降低检修频率和LVDT反馈波动,提升机组运行的稳定性。This paper proposes an improved protective casing design for the faults of core bending,wear and valve stem fracture of high voltage regulator Linear Variable Differential Transformer(LVDT)in operation.By extending the LVDT protective sleeve and adding the anti-wear and vibration reduction device to the top and tail of the protective pipe,the occurrence of LVDT core bending and fracture is effectively reduced,the service life of LVDT is extended,the maintenance frequency and the feedback fluctuation of LVDT are reduced,and the stability of the unit operation is improved.

关 键 词：线性可变差动变压器(LVDT) 防磨减振 铁心弯曲 设备改造 

分 类 号：TM621[电气工程—电力系统及自动化]