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液 压 泵 站 操 作 规 程
Operational Rules for Hydraulic Pump Station

  1. 准备Preparations Before Starting the Machines
   1.1检查液压油柜的油位和油温。
   Check the oil level and oil temperature of the hydraulic oil tank.
   1.2每次开机前要打开(或确认已打开)液压泵站的所有吸油管、回油管、泄漏管上的球阀,然后合上电源主开关。
   Every time before running the machines, open (or confirm that they have been opened) all the ball valves on the oil inlet pipe, the oil return pipe and the leakage pipe at the Hydraulic Pump Station, then turn on the master switch of the electric source.
   2. 压力调整Pressure Adjustment
   2.1系统最高压力限定设定:调节位于油箱上方的压力继电器D8发讯压力。
   The highest pressure constrained set for the system: Adjust the signal pressure of the pressure relay D8 above the oil tank.
   2.2系统安全压力的调定: 调节位于油箱后方、蓄能器附近的溢流阀D1。
   Safety pressure set for the system: Regulate the overflow valve D1 located at the back of the oil tank and near the energy storage.
   2.3控制泵B21压力设定:调节泵B21拐点压力和控制泵调压阀块上的电磁溢流阀B25。电磁溢流阀B25压力要比泵B21高1.5-2MPa。
   The pressure set for the control pump B21: Regulate the break-over pressure of the pumpB21 and adjust the solenoid overflow valve on the adjusting pressure valve block of the control pump. The pressure of the solenoid overflow valve is higher 1.5 – 2MPa than that of the pump B21.
   2.4 主泵B4.1和B4.2压力设定:调节主泵调压阀块上的电磁溢流阀B11.1和B11.2。
   The pressure set for the main pumps B41 and B42: Regulate the solenoid overflow valves B11.1 and B11.2 on the adjusting pressure valve block of the main pump.
   2.5泵B21、电磁溢流阀B11.1和B11.2的压力不能高于31.5 MPa。
   The pressure for the pump B21, the solenoid overflow valve B11.1 and B11.2 can’t be higher 31.5MPa.
   2.6溢流阀D1压力要比压力继电器D8压力调高1 MPa左右。
   The pressure of the overflow valve D1 should be adjusted higher about 1MPa than that of the pressure relay D8.

  3.停机Stop
   3.1在停油泵电机前应将相应的油泵卸载;在液压泵站全部停机后,应确保所有的加载/卸载旋钮处于卸载位置。
   The corresponding oil pump should be unloaded before stopping the oil pump motor. After the Hydraulic Pump Station stops working, make sure all the load/unload turnbuttons be on the unload positions.
   3.2断开电源主开关。

  Turn off the master switch of the electric source.


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