汽轮机运行培训教材.pptx

汽轮机运行 turbine operation;f）抗燃油或透平油油质不合格，油温低于正常（油系统充满油后）； g）保温不完整； h）主要仪表（如轴向位移，相对膨胀，转速表及重要金属温度表，主蒸汽压力和温度表等）失灵时； i）汽缸调节级区域上下缸温度超过50℃； k)汽轮机真空不能保持0.067MPa时。 EH oil or turbine oil is not qualified, and oil temperature is abnormal (after oil system is full of oil); Insulation is not complete; Main instruments (such as axial displacement, relative expansion, tachometer and important metal thermometer, main steam pressure condenser vacuum meter and thermometer) has failure; The upper and the lower casings temperature of turbine governing stage area exceeds 50℃. Vacuum of turbine can not keep at 0.067MPa. ;1.2启动前的准备工作 1.2 Preparation before turbine startup: a）检查油系统，油箱、油管道、冷油器不漏油，油箱油位正常， 油箱和冷油器放油门关严，冷油器进、出口油门处于开启位置， 交流、直流电动润滑油泵入口门开启，出口门开启； b）电动主闸门及其旁路门处于关闭位置； c）自动主汽门、调速汽门处于关闭位置； d）管道和汽缸本体疏水阀处于开启位置； e）各抽汽管道逆止门处于关闭位置； Check whether oil system, oil tank, oil pipes and oil cooler leak, oil level is normal, outlet valve of oil tank and oil cooler closes tightly, inlet and outlet oil valve of oil cooler is in open position, inlet valve and outlet valve of AC and DC electric lube oil pump are open. Electric main stop valve and other bypass valves are in closed position; Auto main stop valve and speed governing valve are in closed position; Drain valves of pipe and casing proper are in open position; Each bleed steam pipe check valve is in closed position;;f）轴承进油温度不低于35℃； g）抗燃油源各阀门状态正确，油温升至20℃以上，抗燃油系统压力调至14MPa。 Inlet oil temperature of bearing is no less than 35℃； Valves of fire-proof oil source are in right state, oil temperature rises above 20℃, and the fire-proof oil system pressure is adjusted to 14MPa. ;1.3锅炉点火前的操作 a）投入发电机冷却系统； b）启动排烟装置； c）启动交流润滑油泵，使润滑油系统开始循环； d）油循环进行10min后，启动高压油泵； e）按顶轴??置说明书投入顶轴装置。检查各轴承顶轴油压正常，然后投盘车装置，测量大轴晃动度，倾听机组内部声音； f）油系统的结构和参数检查必须严格，否则要造成严重事故； 1.3 Preparation before boiler ignition: Put generator cooling system into operation; Startup smoke venting device; Start up AC lube oil pump to make lube oil system began to circulate; After oil circulation