Overview of thermal power units' faults and the countermeasures under the target of “carbon neutrality and carbon peaking”

ZHANG Xueyan; HE Guoan; ZENG Lifei; PAN Bo; CUI Guangming

doi:10.19666/j.rlfd.202210228

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Overview of thermal power units' faults and the countermeasures under the target of “carbon neutrality and carbon peaking”

更新时间：2025-09-28

- Overview of thermal power units' faults and the countermeasures under the target of “carbon neutrality and carbon peaking”
- Thermal Power Generation Vol. 51, Issue 12, Pages: 10-17(2022)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202210228
  CLC： TM621
- Published：2022
- 稿件说明：
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ZHANG Xueyan, HE Guoan, ZENG Lifei, et al. Overview of thermal power units' faults and the countermeasures under the target of “carbon neutrality and carbon peaking”[J]. Thermal power generation, 2022, 51(12): 10-17.
DOI：

ZHANG Xueyan, HE Guoan, ZENG Lifei, et al. Overview of thermal power units' faults and the countermeasures under the target of “carbon neutrality and carbon peaking”[J]. Thermal power generation, 2022, 51(12): 10-17. DOI： 10.19666/j.rlfd.202210228.

摘要

“双碳”目标下，火电机组实施了一系列的改造，随着火电机组节能降耗各项措施的实施、大流量供热和工业抽汽改造、灵活性运行以及远距离输电采用交流串补和特高压直流输电技术，汽轮机和辅机设备安全可靠性问题日益突出。基于现场案例和经验，系统归纳总结机组运行中主辅机设备存在的轴系振动、转子裂纹和转动部件脱落、汽轮机长叶片振动和腐蚀、进汽阀门卡涩和振动等故障的机理和特征。针对这些故障给出相应的应对措施，为保障当前形势下火电机组安全稳定运行提供技术支持。

Abstract

Thermal power units have implemented a series of transformation under the goals of “carbon neutrality and carbon peaking”. These transformation measures include: various measures for energy conservation and consumption reduction

the transformation of large flow heat supply and industrial steam extraction

flexible operation for thermal power units

and the adoption of AC series compensation and UHVDC transmission technology for long-distance transmission. With the implementation of these measures

the safety and reliability problems of steam turbine and auxiliary equipment become increasingly prominent. Based on the field cases and experiences

this paper systematically summarizes the mechanism and characteristics of typical faults

such as the shafting vibration of main and auxiliary equipment

rotor cracks and rotating parts fall off

vibration and corrosion of long turbine blades

stuck and vibration of steam inlet valve

and so on. Moreover

corresponding countermeasures are given to provide technical support for the safe and stable operation of thermal power units under the current situation.

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