When the turbine speed is very low, there is no oil film between the journal and bearing, and the journal will be in contact with the bearing. If friction exists, the shaft neck and the bearing may be bruised. In addition, if there is no oil film, the rotor may shake when the rotor rotates, which often causes the vibration of the blade. In order to prevent the damage of the steam turbine, reduce the power of the steam turbine and ensure the smooth running of the car, the steam turbine is equipped with a top shaft oil system. The bearing of the low pressure rotor is matched with one set, the bearing of the high and medium pressure rotor is tilting tile, and it is not equipped with the top shaft oil device.
The jacking oil pump inlet filter DQ6803GA20H1.5C pressure difference high alarm or when the filter leakage should switch the filter; open the spare oil filter exhaust valve, confirm its drain valve closed; open the pressure valve to the spare filter filling oil, when the oil view mirror saw, when there is not entrainment gas oil flow, close the exhaust valve; loose the switch handle lock mother, fuck, fuck, fuck the switch handle lock mother, fuck Make the handoff handle, cut the oil filter into the standby filter, then lock the handle lock tightly, record the initial pressure difference, turn off the pressure valve, open the exhaust valve of the disused filter, open the drain valve and pay attention to the waste oil recovery, and deliver the oil after the oil filter is finished. The filter that has been repaired is to be filled with oil and leak as backup.
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