能源工程2024，Vol.44Issue(4)：31-35,5.DOI:10.16189/j.nygc.2024.04.006
1030MW机组高压旁路调节阀失效分析及技术对策
Failure analysis and technical countermeasures of high-side control valve of 1030MW unit
张宇飞1
作者信息
- 1. 浙江浙能中煤舟山煤电有限责任公司,浙江 舟山 316000
- 折叠
摘要
Abstract
During the operation of steam turbine of a 1030MW ultra supercritical power plant,the bolts on valve cover of high bypass control valve broke,which reduced the safety of the unit.Through analysis,it is considered that bolt quality and valve structure are the main reasons for the failure of high bypass control valve.In order to avoid personal injury,equipment damage,the unit was unscheduled shutdown due to valve steam leakage and bolt fracture,and improve the unit efficiency,a technical transformation scheme using self-sealing high bypass control valve is proposed by using the original nozzle,actuator,control component and hydraulic oil station.关键词
高压旁路/调节阀/螺栓/断裂/自密封Key words
HP bypass/control valve/bolt/fracture/self-sealing分类
能源科技引用本文复制引用
张宇飞..1030MW机组高压旁路调节阀失效分析及技术对策[J].能源工程,2024,44(4):31-35,5.
