| 摘要 |
PURPOSE:To make a synchronous operation easy and to enlarge a range of synchronous timing, by providing an auxiliary speed matching valve on a bypass system connecting an outlet side of a reheat boiler with an auxiliary condenser. CONSTITUTION:Reheat steam to be sent from a reheat boiler 10 is led to a medium pressure turbine 3 through a reheat steam stop valve 17 and an intercept valve 16, and after the reheat steam of the medium pressure turbine 3 is led to a main and an auxiliary low pressure turbines 4a and 4b respectively it is discharged into a main and an auxiliary condensers 6a and 6b respectively. A part of a main steam flow bypassed through a high pressure turbine 2 and the main low pressure turbine 4 is controlled by a main speed matching valve 13. A part of a reheat steam flow bypassed through the medium pressure turbine 3 and the auxiliary low pressure turbine 4b is controlled by an auxiliary speed matching valve 18. Two-shaft synchronization can be realised in a short period of time and easily by both the valves 13 and 18. |
