| 摘要 |
PURPOSE:To perform a proper treatment by calculating heat transmission rate, temperature efficiency and air leakage of an air preheater according to a piece of information obtained from sensors, comparing and calculating them with optimum value to estimate damage and dust adhesion conditions, and instructing repair and a wash. CONSTITUTION:Heat transmission rate, temperature efficiency, air leakage rate and the like are calculated by data measured 20 by each sensor, and they are compared and calculated 21 with standard value previously input. In the case where the performance of an air preheater is grasped according to deviations from the standard value of each value and performance degradation is judged, the damage of parts from deviation conditions of each value and concrete performance degradation causes such as element blocking are estimated 22, and the discussion 23 of a countermeasure and operating instructions corresponding to the estimation 22 are performed and their results are shown 24. For example, if temperature efficiency is lowered with passing time and reaches repair standard, its display and an alarm are generated. If heat transmission rate R is lowered with passing time and reaches repair standard, its display and an alarm are also generated and the damages such as heat transfer elements can be repaired within a slight damage. |
