SEAL OIL DEVICE OF DYNAMO-ELECTRIC MACHINE

PROBLEM TO BE SOLVED: To provide a seal oil device of a dynamo-electric machine capable of suppressing vibration of a rotary shaft, by controlling the supply pressure of the seal oil in each shaft seal portion appropriately.SOLUTION: A seal oil device 9 includes a seal oil supply device 6 for supplying seal oil 7, a first line 10a for leading the seal oil 7 from the seal oil supply device 6 to one shaft seal portion 5a, and a second line 10b for leading the seal oil 7 from the seal oil supply device 6 to the other shaft seal portion 5b. The first line 10a is provided with a first pressure regulation valve 24a, and the second line 10b is provided with a second pressure regulation valve 24b. The first pressure regulation valve 24a regulates the pressure of the seal oil 7 passing through the first pressure regulation valve 24a, and the second pressure regulation valve 24b regulates the pressure of the seal oil 7 passing through the second pressure regulation valve 24b.SELECTED DRAWING: Figure 1 【課題】各軸シール部における密封油の供給圧力を適切に制御し、回転シャフトの振動を抑制することができる回転電機の密封油装置を提供することを目的とする。【解決手段】実施の形態による密封油装置９は、密封油７を供給する密封油供給装置６と、密封油供給装置６から一方の軸シール部５ａに密封油７を導く第１ライン１０ａと、密封油供給装置６から他方の軸シール部５ｂに密封油７を導く第２ライン１０ｂと、を備えている。第１ライン１０ａには第１圧力調整弁２４ａが設けられ、第２ライン１０ｂには第２圧力調整弁２４ｂが設けられている。そして、第１圧力調整弁２４ａは、第１圧力調整弁２４ａを通過する密封油７の圧力を調整し、第２圧力調整弁２４ｂは、第２圧力調整弁２４ｂを通過する密封油７の圧力を調整する。【選択図】図１