| 摘要 |
PURPOSE:To improve power generation efficiency by providing a steam flow controller for reforming with a function of controlling the flow adjustment valve of steam for reforming so that the heat demand matches with the amount of exhausted steam. CONSTITUTION:When the amount of exhaust steam heat exceeds the heat demand at a heat demanding house 14, since an exhaust steam heat returning water temperature 17 becomes higher than a set value 18, a deviation between the set value 18 and the water temperature 17 is calculated by a subtractor 19. A correction signal 24 is sent to a steam flow controller 6 for reforming by a water temperature correction calculator 23 so that the deviation reaches zero level. The value set by a steam flow setter 7 for reforming, based on the material combustion flow measured by a material combustion flow meter 4, is calculated by an adder 25, and a set value of steam flow for reforming is thus determined, A deviation between the set value of steam flow for reforming and the flow level measured by a steam flow meter for reforming is calculated, and a steam flow control valve 11 for reforming is controlled by a steam flow control valve opening calculator 9 so that the deviation becomes zero. |
