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Boiler combustion control system and method

A boiler combustion and control system technology, applied in the field of boiler combustion control

Active Publication Date: 2018-08-21
CHINA SHENHUA ENERGY CO LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a boiler combustion control system and method for solving the problem of dynamic self-adaptive control of the secondary air door opening of the boiler

Method used

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  • Boiler combustion control system and method
  • Boiler combustion control system and method
  • Boiler combustion control system and method

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Embodiment Construction

[0023] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0024] figure 1 It is the block diagram of the boiler combustion control system provided by the present invention, such as figure 1 As shown, the system includes a receiving module 101, a processing module 102 and a control module 103. The receiving module 101 is used to receive the boiler combustion parameters from time k-n to time k at each moment; the processing module 102 is used to The boiler combustion parameters including the secondary air door opening at time k are optimized by immune genetic algorithm to obtain the control amount of the secondary air door opening at time...

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Abstract

The invention provides a boiler combustion control system and method, and belongs to the technical field of boiler combustion control. The system comprises a receiving module, a processing module anda control module, and the receiving module is used for receiving boiler combustion parameters every moment in the period from the time k-n to the time k; the processing module is used for acquiring the control quantity of the opening degree of a secondary air door of a boiler at the time k+1 with an immune genetic algorithm through optimization according to the boiler combustion parameters including the opening degree of the secondary air door in the period from the time k-n to the time k; and the control module is used for adjusting the opening degree of the secondary air door of the boiler at the time k+1 according to the control quantity of the opening degree at the time k+1 every moment, wherein n is larger than 0. According to the boiler combustion control system, the optimal openingdegree of the secondary air door is obtained with the immune genetic algorithm through optimization of the opening degree of the secondary air door in the past period of time, and the opening degree of the secondary air door is adjusted accordingly; the opening degree of the secondary air door is adjusted according to the technical scheme provided by the invention, and the emission of nitrogen oxides is reduced greatly while the boiler combustion efficiency is improved.

Description

technical field [0001] The invention relates to boiler combustion control technology, in particular to a boiler combustion control system and method. Background technique [0002] Combustion optimization is an important means for energy saving and emission reduction of active power plant boilers. The conventional boiler combustion control system currently used can only control the required total coal supply volume, total air supply volume, etc. according to different load requirements, but the boiler burner has multiple layers, and the coal supply of each layer How to distribute air volume and air volume will affect the combustion conditions of the boiler, which will affect the combustion efficiency of the boiler and the emission of nitrogen oxides (NOx) in the flue gas. It is an equal distribution, which is obviously not optimal; as for the air supply, the total air volume under different loads is only calculated at present, but the boiler air supply is added to the furnac...

Claims

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Application Information

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IPC IPC(8): F23N3/00F23N5/20
CPCF23N3/007F23N5/203F23N2900/05003
Inventor 张晓宇付林沈亚东刘秋生张俊杰贺桂林范永胜李益国沈炯
Owner CHINA SHENHUA ENERGY CO LTD
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