9E燃机旋转隔板影响EH油系统压力降低原因解析  

Cause of EH Oil System Pressure Reduction Caused by 9E Gas Turbine Rotating Clapboard

作　　者：程小正 

机构地区：[1]大唐苏州热电有限责任公司,江苏苏州215214

出　　处：《安徽电气工程职业技术学院学报》2017年第1期71-74,共4页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：大唐苏州热电有限责任公司两台PG9171E型燃气-蒸汽联合循环机组60MW汽机EH油系统油压在挂闸前和运行中出现系统油压连续降低;通过对EH油泵、溢流阀和各阀门的检查,最后确定为旋转隔板(IV)伺服阀在开油路导通时卸荷阀泄走高压油回流油箱。通过对伺服阀控制信号的负迁移及卸荷阀进油节流阀维修,成功解决了EH油系统油压下降问题。The 60MW gas turbine EH oil system pressure of two PG9171E gas-steam combined cycle units continuously decreases in Datang Suzhou Thermal Power Co., Ltd. before latch-on and in the operation. By checking EH oil pump, relief valve and other valves, it is finally determined that the rotating clap- board （IV） servo valve high pressure oil returns tank when oil conduction and unloading valve leakage. Based on the negative transfer of the servo valve control signal and unloading valve inlet throttle valve repair, the problem of the EH oil system pressure reduction is solved successfully.

关 键 词：EH油压 节流阀 伺服阀 有压回油 卸荷阀 LVDT 

分 类 号：TK478[动力工程及工程热物理—动力机械及工程]