| 摘要 |
PURPOSE:To provide a series denitration controlling device in which the regulato ry values of NOx and NH3 are thoroughly satisfied in order to core with the tightening of the regulation of environmental protection. CONSTITUTION:A series denitration controlling device is equipped with discharge amount controlling parts 1, 2, 3, 4 of at least 2 or concentration controlling parts, a set value-comparing arithmetic unit 41 which outputs the strictest value among the NOx set value signals outputted from these controlling parts and a computing element 28 outputting the respective NOx discharge amount set value signals by the signal outputted from the arithmetic unit 41. The discharge amount controlling parts 1, 2, 3, 4 output the NOx set value signals 27, 32, 38, 40 by each instantaneous discharge amount and transit time mean discharge amount and discharge concentration of NOx and NH3 of the whole series. |
