| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing oil supply apparatus capable of being appropriately manufactured and improving oil supply efficiency to bearings, and a bearing oil supply method.SOLUTION: A bearing oil supply apparatus includes: a main oil tank 1 storing lube oil supplied to bearings 9 of a turbine rotor; first oil supply means supplying the lube oil to the bearings 9 from the main oil tank 1 at the time of normal operation of the turbine rotor; an oil head tank 7 being provided at a higher position with respect to the bearings 9 and storing the lube oil from the main oil tank 1 at the time of the normal operation; and second oil supply means discharging the lube oil stored in the oil head tank 7 by a head difference in the oil head tank 7 and supplying the lube oil to the bearings 9 until the turbine rotor stops by causing a pressure inside the main oil tank 1 to be a negative pressure and supplying air from the main oil tank 1 to the oil head tank 7 at the time of emergency when an oil supply amount to the bearings 9 from the main oil tank 1 is in short.SELECTED DRAWING: Figure 1 |
