| 摘要 |
PURPOSE:To simplify a system, by having an oil tank, an oil feeding pump, and the like in bearing lubricant system for common use. CONSTITUTION:A feed pipe 4 for closed oil for feeding closed oil to the seal ring 3 of a turbo-generator 1 sealing hydrogen gas for cooling in the machine, is continuously connected to a feed pipe 11 for bearing lubricant for arranging an oil feeding pump 10 and an oil cooler 15 for cooling in series via a differential pressure control valve 24 and a check valve 30, and is continuously connected to an oil tank 9 in this manner. In the meantime, the oil tank 9 is continuously connected to the feed pipe 4 for closed oil, and an exclusive feed pipe 29 for closed oil arranging an exclusive pump 27 for closed oil and a check valve 28 is provided. The discharging quantity for the exclusive pump 27 for closed oil is set in closed oil quantity needed during the stop of the turbo-generator 1. |
