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9FB燃机燃料控制阀LVDT反馈偏差原因分析与解决方案 被引量:1

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摘要 GE 9FB型燃机,使用SonicFloTM气体燃料控制阀,输送气体燃料给工业燃气轮机并保证燃烧系统的燃气流量调节,该执行机构采用整体式单弹簧作用设计,其内部结构包括内置液压过滤器、三重线圈电冗余伺服阀、直接耦合到液压活塞的三重线圈LVDT位置反馈等。该执行机构采用位置反馈(LVDT)与伺服阀共同组成闭环随动系统,来保证其不受压力变化的近似百分比的流量特性。论文针对某热电厂450 MW单元机组投产后气体燃料控制阀三冗余LVDT偏差问题进行原因分析,制定解决方案。方案实行后机组的运行结果显示,本次的实施方案不仅从根本上解决9FB燃机燃料控制阀LVDT偏差问题,而且保证了机组运行、燃烧安全与稳定。
作者 孔金波
出处 《中小企业管理与科技》 2022年第11期127-129,共3页 Management & Technology of SME
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