目 录

1 总则 .............................................................................................................................................. 1

1.1 适用范围 ............................................................................................................................ 1 1.2 编制依据 ............................................................................................................................ 1 1.3 检修前准备 ........................................................................................................................ 1 2 拆检机泵各零部件 ....................................................................................................................... 2

2.1 附属管线拆除 .................................................................................................................... 2 2.2 联轴器拆卸 ........................................................................................................................ 3 2.3 轴承箱解体 ........................................................................................................................ 3 2.4 拆解高低压侧集装式机械密封 ........................................................................................ 5 2.5 拆解平衡盘座、平衡盘 .................................................................................................... 5 2.6 拆解泵体 ............................................................................................................................ 5 3 检查与修复 ................................................................................................................................... 6

3.1 静止部件的检查与修复 .................................................................................................... 6 3.2 转子部件的检查与修复 .................................................................................................... 7 4 机泵零件回装 ............................................................................................................................. 12

4.1 回装前确认 ...................................................................................................................... 12 4.2 转子的预装 ...................................................................................................................... 12 4.3 泵的总装与调整 .............................................................................................................. 13 5 试车和验收 ................................................................................................................................. 17 附录1 串级机械密封故障现象原因及解决措施 ........................................................................ 17 附录2 离心泵常见故障及处理方法表 ........................................................................................ 19 附录3 多级泵各部间隙表 ............................................................................................................ 20