Fluidized bed boiler combustion optimization adjustment control method and device

Abstract

The invention relates to the technical field of combustion optimization regulating and controlling of fluidized bed boilers, in particular to a combustion optimization regulating and controlling method and a device of a fluidized bed boiler. The method comprises the steps of receiving working condition parameters gathered by a parameter sensor installed on the fluidized bed boiler, and performing optimization regulating and controlling on a water system of the fluidized bed boiler and air-coal ratio according to the working condition parameters and a preset parameter operation range corresponding to the working condition parameters, wherein the regulating and controlling on the water system of the fluidized bed boiler comprises drum water level automatic regulating and controlling and main steam temperature automatic regulating and controlling; the optimization regulating and controlling on the air-coal ratio of the fluidized bed boiler comprises furnace draft automatic regulating and controlling, air output automatic regulating and controlling, bed temperature automatic regulating and controlling, material bed pressure difference automatic regulating and controlling and boiler header pressure automatic regulating and controlling. The method and the device realize the automatic regulating and optimizing of the water system and the air-coal ratio of the fluidized bed boiler, and reduce the influence by artificial regulating and controlling factors through automatic regulating and controlling.

Description

technical field [0001] The invention relates to the technical field of fluidized bed boiler combustion optimization adjustment control, in particular to a fluidized bed boiler combustion optimization adjustment control method and device. Background technique [0002] China's energy reserves rank among the highest in the world, and it is also the world's second largest energy producer and consumer. The total reserves of China's primary energy resources are about 4 trillion tons of standard coal. However, the per capita possession and consumption of energy resources are far below the world average. China's energy development and utilization presents the following main characteristics: [0003] First, coal is the main source of energy, and the degree of development and utilization of renewable resources is very low. China's proven coal resources account for more than 90% of the total primary energy such as coal, oil, natural gas, hydropower and nuclear energy, and coal plays...

AI Technical Summary

Problems solved by technology

[0004] Second, the total energy consumption continues to grow, and energy utilization efficiency is low

[0006] The combustion of the traditional circulating fluidized bed boiler is controlled by the distributed control system DCS system, but the existing DCS system is mainly based on manual regulation, and the regulation accuracy is not high, resulting in low combustion efficiency of the circulating fluidized bed boiler, resulting in waste of energy

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