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Boiler control and combustion optimization method

A combustion optimization and boiler control technology, which is applied in the control of combustion, control system, steam generation, etc., can solve the problems of difficult control of the boiler system, and achieve the effect of ensuring stability, high economic benefits, and solving difficult control.

Active Publication Date: 2013-09-25
XIAN IBL TECH DEV
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AI Technical Summary

Problems solved by technology

[0004] The invention aims at the safe and economical operation of the boiler control and combustion optimization system, aims at the operating characteristics of the boiler system, ensures the continuous, economical and stable operation of the boiler system, and solves the problem that the boiler system is difficult to control for a long time

Method used

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  • Boiler control and combustion optimization method
  • Boiler control and combustion optimization method

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Embodiment Construction

[0038] Thinking of the present invention is as follows:

[0039](1) The control strategy combining conventional control and advanced control is adopted to realize the automatic control of boiler main steam pressure (or flow), main steam temperature, flue gas oxygen content, furnace negative pressure, and steam drum water level, so as to ensure boiler control and Stability of the combustion optimization system;

[0040] (2) Taking the boiler efficiency as the optimization target, real-time optimization of the operating parameters during the boiler combustion process is carried out to ensure that the system operates in the best combustion zone;

[0041] (3) Add a control and optimization station to the monitoring layer of the distributed control system to realize online calculation of boiler efficiency, control algorithm, combustion optimization algorithm, and fault diagnosis of boiler control and combustion optimization process.

[0042] The application method of the boiler co...

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Abstract

The invention discloses a boiler control and combustion optimization method and solves the problem that the boiler system is difficult to control for a long time. The method includes the steps of 1, establishing a target function; 2, recording an optimized target function value and an operating parameter to be optimized when the boiler system stably operates; 3, adding a preset step value to the operating parameter to be optimized; 4, after the boiler system stabilizes and the target function increases, continuing to add a step value until the target function value decreases; if the target function value decreases, performing reverse step optimization, decreasing by one step value until the target function value increases, and confirming that the boiler system is in the optimal combustion area. The boiler control and combustion optimization method has the advantages that system stability is ensured, system performance is improved, labor intensity is reduced for workers, the system is integrally optimized, and economic benefit is high.

Description

technical field [0001] The invention relates to the technical field of industrial automatic control, in particular to the control and combustion optimization of a coal-fired boiler system. Background technique [0002] The boiler control system is responsible for burning pulverized coal to produce qualified steam, controlling the main steam temperature and satisfying the system feed water and other important tasks. The quality of the boiler control process is not only directly related to the production capacity of the boiler and the reliability of the production process, but also has To a certain extent, it determines the economy of boiler operation. Since my country's boiler control system was put into operation, the problems of automatic control and optimal operation have not been well resolved. The operation adjustment has always relied on the operator to observe the measuring instrument, through the main steam pressure and temperature, flue gas oxygen content, furnace ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B35/00F23N5/00
Inventor 崔栋刚李金卢洋
Owner XIAN IBL TECH DEV
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