第五节 转动机械的运行操作
一．离心泵的启动、运行、维护与停运
1．泵启动前的检查
● 泵、电机周围清洁，不允许任何杂物存放、妨碍泵的安全运行；
● 泵底座固定螺母牢固，电动机接地线良好；
● 泵的各部件连接牢固，手盘靠背轮正常自如；
● 转动部位防护罩安全可靠；
● 轴承油室内油位正常（约2／3处），油质合格；
● 检查水箱出口阀、泵的进口阀应在开启位置，泵的出口阀应在关闭位置；
● 检查泵的冷却水，并调整至冷却水流量合适；
2．离心泵的启动、停运
● 离心泵的启动：
按泵的“启动”按钮（可就地/远方操作，选择开关在MCC，启停按钮在MCC上或在就地电动机旁）
；
检查转动方向正确，压力表是否指示正常及泵的振动正常；
待压力稳定后，缓慢开启泵的出口阀并调整至所需流量。
● 离心泵的停运
关闭泵的出口阀，按泵的“停止”按钮（可就地/远方操作，选择开关在MCC，启停按钮在MCC上或
在就地电动机旁）；
水泵停运期间，室温不应低于5℃，否则应放掉泵内积水，以防冻裂泵体。
电磁隔膜计量泵的启动、停运
3． 计量泵的启动：
● 打开所用计量箱出口阀，打开计量泵进、出口阀，打开该计量泵管路系统上所有阀门；
● 按计量泵的“启动”按钮启动计量泵（可就地/远方操作，选择开关在MCC，启停按钮在MCC上
或在就地电动机旁）；
●检查出口压力表指示是否正常；
待出口压力稳定后，调整泵的行程或脉冲频率来调整泵的出力到所需流量。
● 计量泵的停运 ：
按计量泵的“停止”按钮，停运计量泵（可就地/远方操作，选择开关在MCC，启停按钮在MCC上或
在就地电动机旁）；
关闭计量泵进、出口阀，如长时间停运还应关闭计量箱出口阀及系统上所开启的阀门。
Section five Operation of rotation machinery
I. Start up, operation, maintenance and shut down of centrifugal pump
1. Inspection before pump startup
●Clean the area around pump and motor; it is prohibited to pile up any miscellaneous
articles or objects to affect the operation security of pump;
●The pump foundation shall be firmly fixed with nut; motor maintain good ground
connection;
●The connection of pump components shall be tightly fixed, the stick coupling shall
be operated under a normal condition;
●The covering of rotation area shall be safe and reliable;
●Bearing oil chamber is in a normal level (2/3 of the oil chamber); the oil material
is qualified;
●Check the outlet valve of water tank; the import valve of pump shall be in open
position; outlet valve of pump shall be in close position;
●Check the cooling water of pump and adjust the cooling water flow to an appropriate
level;
2. Startup and shut down of centrifugal pump
●Startup of centrifugal pump:
Press the “start” button of pump (implement the local/remote operation; select
switch is in MCC; startup and shut down button is on MCC or nearby the local motor);
Check whether the rotation direction is correct; check whether the pressure gauge and
pump vibration is normal;
After the pressure is stable, slowly opens the outlet valve and adjust the pump to the
required current capacity.
●Shut down of centrifugal pump
Close the outlet valve of pump; press the “shut down” button of pump (local/remote
operation, select switch is in MCC; startup and shut down button is on MCC or nearby
the local motor);
The room temperature shall not be lower than5℃ during the water pump shut down
period; otherwise, it is required to discharge excess water in the pump for preventing
the cracks of pump body due to freezing.
The startup and shut down of electromagnetism film metering pump start, suspends
shipment
3. Startup of metering pump:
●Opens all outlet valve of metering tank; opens the inlet and outlet valve of
metering pump; opens o all valves on this metering pump pipeline;
●Press the “startup” button of metering pump (local/remote operation, select switch
is in MCC; startup and shut down button is on MCC or nearby the local motor);
●Check whether the indications of outlet pressure gauge is normal;
After the outlet pressure is stable, adjust the travel or pulse frequency to adjust
required current capacity of pump output.
●Shut down of metering pump
Press the “shut down” button of metering pump (local/remote operation, select switch
is in MCC; startup and shut down button is on MCC or nearby the local motor);
Closes the inlet and outlet valve of metering pump; it is required to close the outlet
valve of metering tank and the opening valve of system when the unit is not in use for
a long time.