摘要
GE 9E燃气轮机燃烧系统由燃烧室、天然气压力调节系统、天然气流量控制系统、清吹系统组成。清吹系统作为燃烧调节中的中间过渡系统,起着关键性的作用。清吹系统出现故障时影响机组的正常升负荷,严重时导致机组自动停机。清吹系统故障通常出现在机组燃烧模式切换过程中,清吹阀无法打开或者无法正确关闭。清吹系统控制阀在燃烧模式切换过程中若无法打开,将导致机组自动降负荷,影响机组的正常启动。针对此类故障文中介绍了合理的改进方案和清吹系统保护逻辑。
The GE 9E gas turbine combustion system consists of a combustion chamber,a natural gas pressure regulation system,a natural gas flow control system,and a purge system.The purge system,as an intermediate transition system in combustion regulation,plays a key role.Failure of the purge system affects the normal load raising of the unit and,in severe cases,results in an automatic shutdown of the unit.Purge system failures typically occur when the purge valve fails to open or closes properly during the unit burn mode switch.Failure of the purge system control valve to open during the burn mode switch will result in an automatic load reduction of the unit,affecting normal startup of the unit.In view of this kind of malfunction,this article introduces the reasonable improvement scheme and the purge system protection logic.
作者
杨体佳
Yang Tijia(Zhuhai Shenzhen Energy Hongwan Power Co.,Ltd.,Guangdong Zhuhai 519060,China)
出处
《燃气轮机技术》
2023年第4期64-68,共5页
Gas Turbine Technology
关键词
燃料清吹系统
燃气轮机
自动降负荷
自动停机
fuel purge system
gas turbine
automatic load reduction
automatic shutdown
