Air intake control system for high-power circulating fluidized bed boiler

Abstract

The invention provides an air intake control system for a high-power circulating fluidized bed boiler and belongs to the field of boiler control. The air intake control system comprises a touch display screen module, a controller module, a steam turbine valve opening degree control module, a multi-gear adjustable exhaust fan, a boiler oxygen content detection module, a generator set output power detection module, a coal particle density detection module and a boiler temperature detection module, wherein the touch display screen module is connected with the controller module; the input terminal of the steam turbine valve opening degree control module is connected with the controller module; the input terminal of the multi-gear adjustable exhaust fan is connected with the controller module; and the output terminals of the boiler oxygen content detection module, the generator set output power detection module, the coal particle density detection module and the boiler temperature detection module are connected with the controller module.

Description

technical field [0001] The invention relates to a boiler air intake control system, in particular to a high-power circulating fluidized bed boiler air intake control system. Background technique [0002] With the development of society, the society's demand for electricity is increasing, and many places cannot meet the demand for electricity. Therefore, it is necessary to use coal power generation to solve the problem of insufficient supply of all electricity. [0003] With the development of circulating fluidized bed technology, large capacity and high parameter circulating fluidized bed boiler has become one of the main technologies for energy saving and consumption reduction. Both circulating fluidized bed and supercritical are mature technologies, and the combination of the two is relatively less risky. The combined technology combines the advantages of low-cost pollutant control of circulating fluidized bed boilers and high-efficiency power supply of supercritical boil...

AI Technical Summary

Problems solved by technology

[0004] At present, the research on the supercritical circulating fluidized bed boiler body is not yet mature, and the research on the control system is also in the exploratory stage, but the unit's commercial operation means that the load change must be stable and meet the requirements of the power grid, and because this boiler is a circulating fluidized bed Combined with supercritical DC independent design for the first time, without mature control system research experience

Especially in terms of air intake control, there is no relatively mature automatic control system

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