Analysis of heat-absorbing of drum boiler superheater based on path analysis

Aimed at the current main steam temperature control problem caused by the burning disturbances which is followed by the coal-fired units involved in peak regulation and frequency modulation, analyzed the shortcomings of the existing solutions and proposed path analysis modeling which can effectively combine the mechanism analysis results for the superheater absorption state reconstruction. Center height signals of the flame was structured, meanwhile introduced the coal factor, excess air, heat signal as the middle layer of variables, and the superheater enthalpy expectations path analysis model has been established and tested. The results show that the model has a great accuracy of prediction, better to reveal the influence of state parameters to the superheater heat-absorbing during combustion process, and be of a great reference value for the boiler combustion system optimization.