The invention belongs to the related technical field of
combustion optimization, and discloses a boiler
combustion optimization method and
system based on air / pulverized
coal and CO on-line monitoring. The method comprises the steps of acquiring the primary air / pulverized
coal concentration, the primary air flow velocity and the CO concentration at multiple measurement points in a
hearth in real time; respectively acquiring the corresponding relationship between the CO concentration and the boiler operation comprehensive cost, the primary air / pulverized
coal concentration, the flow velocity and the secondary air
air door opening
degree matrix under multiple working conditions; acquiring threshold ranges of the CO concentration, the primary air / pulverized coal concentration and the flow velocity under the various working conditions and the secondary air
air door opening degree optimization interval by taking the optimal boiler operation comprehensive cost as a standard; and detecting the primary air / pulverized coal concentration, the primary air flow velocity and / or the secondary air
air door opening
degree matrix when the CO concentration or the primary air / pulverized coal concentration or the primary air flow velocity monitored in real time is not within the corresponding threshold range. According to the method and the
system, accurate adjustment of the boiler
combustion sideis realized by monitoring the CO concentration of the boiler side and jointly adjusting the parameters of primary air and secondary air.