| 摘要 |
<p>PURPOSE:To make it possible to synthetically control denitration even at the transitional period of a turbine, in the denitration control apparatus of a power plant, by providing a NOx exhaust amount setting means, a flow amount detector, a function generator, an operational control means and a reducing agent injection amount control means. CONSTITUTION:The NOx flow amount setting value C of the whole of a plant is inputted to an control operator 41 from a setting device 22 and, by using outputs of function generators 27, 28 storing NOx flow amount patterns when a turbine is started and stopped, a memory apparatus 43 for storing the output of an adder 42, an adder 30 for calculating the sum of NOx flow amount present values and an operation schedule setting apparatus 44, the NOx flow amount set value (d) of each gas turbine equipment held under synthetic denitration control is outputted. The set value signal (d) is outputted from the control operator 41 and inputted to synthetic control ON/OFF change-over devices 36A-C through an upper and lower limit controller 34 to perform the control of a NOx-reducing agent injection amount at every turbine equipment.</p> |
