| 摘要 |
PURPOSE:To reduce the required time for a temperature rise of lubricating oil and rapidly start a turbine, by selectively supplying heated water to a temperature regulating oil heat exchanger of the lubricating oil of the turbine in addition to cooling water. CONSTITUTION:Lubricating oil fed to oil heat exchangers 24, 25 by a feed oil pump 3 from an oil tank 1 through a selector valve 4 is regulated to required temperature and then supplied to bearings 10a-10d of a steam turbine 8, generator 9, etc. Cooling water is supplied to the exchangers 24, 25 from a cooling water circulative system I through an oil temperature regulating valve 17, while hot water from a degassing device 30 is supplied from a heated water circulative system II through inlet valves 26a, 27a, outlet valves 26b, 27b and a heated water temperature control valve 38. Accordingly, at acceleration of a turbine, hot water is supplied to positively heat the lubricating oil to required temperature in accordance with speed, and the time for starting the turbine is reduced. |
