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Intelligent air supply control method and device and storage medium

A control method and intelligent technology, applied in the direction of combustion control, combustion method, air supply adjustment, etc., can solve problems such as unsafe and uneconomical, inaccurate air volume measurement, etc., achieve desulfurization environmental protection pressure reduction, stable change, and improve stock-out efficiency Effect

Active Publication Date: 2021-05-14
HUANENG WUHAN POWER GENERATION CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to provide an intelligent air supply control method, equipment and storage medium to solve the current problem of inaccurate air volume measurement, unsafe and uneconomical problems due to the air supply control strategy of coal-fired thermal power units

Method used

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  • Intelligent air supply control method and device and storage medium
  • Intelligent air supply control method and device and storage medium
  • Intelligent air supply control method and device and storage medium

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Embodiment Construction

[0031] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0032] see figure 1 and figure 2 , the intelligent air supply control method provided by the embodiment of the present invention includes the following steps:

[0033] S100. Analyze the historical data and obtain the fan output baseline function through the actual load dynamic test, wherein the fan output baseline function is the actual load of the coal-fired thermal power unit and the opening of the fan rotor blade, the stator blade opening, or the frequency conversion value The function between, the output value of the blower is in a functional relationship with the opening of the moving ...

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Abstract

The invention relates to an intelligent air supply control method and device and a storage medium. The method comprises the steps: analyzing historical data, and obtaining a fan output reference line function through an actual load dynamic test. According to the actual load of a coal-fired thermal power generating unit and a fan output reference line function, the total output initial value of air blowers is obtained, and according to the total output initial value of the air blowers, the initial output value of each air blower is set, so that each air blower operates according to the initial output value. According to an oxygen amount correction result of the oxygen amount PID corrector, the correction amplitude of the total output initial value of the air blowers is obtained, and the initial output value of each air blower is corrected according to the correction amplitude of the total output initial value, so that each air blower operates according to the corrected output value. When the actual load of the coal-fired thermal power generating unit changes, the output value of each air blower is adjusted according to the current oxygen amount. The method solves the problem that the air quantity measurement of the air supply control strategy of the coal-fired thermal power generating unit is not accurate, so that the method is unsafe and uneconomical.

Description

technical field [0001] The invention relates to the technical field of coal-fired thermal power units, in particular to an intelligent air supply control method, equipment and storage medium. Background technique [0002] Coal-fired thermal power units generally have at least 6 independent measuring points for the air volume that enters the furnace for combustion. The basic principle of the current popular and reliable air volume measurement in the market is differential pressure. , Air volume measurement is distorted due to factors such as wind velocity interference, and maintenance personnel have a heavy maintenance workload. [0003] The traditional air supply control strategy PID control (air-to-coal ratio) often leads to over-oxygen or negative-oxygen combustion in the boiler due to inaccurate air volume measurement, which affects the combustion efficiency of the boiler, threatens the safe operation of the unit, and increases the burden of out-of-stock. The traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N3/00
CPCF23N3/002
Inventor 高鹏刘锴赵亚东喻长江王玮粱小虎
Owner HUANENG WUHAN POWER GENERATION CO LTD
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