锅炉给水泵轴封改造

摘要

针对高压锅炉给水泵轴封泄漏问题，对较大窜量的锅炉给水泵的轴封由填料密封改为机械密封。冲洗水采用机械密封循环液由密封室中的泵送环送出，经过冷却器返回到密封室；密封结构采用大弹簧拨叉结构传动。泵机械密封改造开车后密封性能优良，消除了轴封经常性泄漏故障，机械密封稳定运行时间达1a以上。%Considering the leakage from shaft seal of HP boiler fed-water pump the change from packing seal to mechanical seal is made to the shaft seal of boiler fed-water pump.The circulation liquid for mechanical seal is used as flush water and pumped out from se