A multi-fuel hybrid boiler adaptive regulation system

Abstract

The application provides a multi-fuel mixed combustion boiler adaptive adjustment system, comprising: a burner adopting a three-valve one-group redundant setting; a coordinated control module, the coordinated control module is configured to: after the multi-fuel mixed combustion boiler completes low-temperature furnace operation and the parameter fluctuation value of the main steam flow and the main steam temperature and pressure is located in a preset stable range, switch the burner and the fuel adjusting valve to a linkage state; start an automatic mode, adjust the fuel ratio according to the load parameter corresponding to the current main steam flow; adjust the multi-fuel mixed combustion boiler load parameter, so that the fuel main pipe flow is located in a preset flow range and the main steam flow fluctuation value is located in a preset fluctuation range; construct a fuel differentiation rate model, so that the main steam flow is located in a preset flow range; to solve the problem that there is currently a lack of adaptive adjustment capability based on main steam flow feedback, different adjustment rates are not designed for different fuel characteristics, which is easy to cause unstable combustion and further cause main steam flow fluctuation.

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