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Method for measuring carbon content of fly ash in power station boiler

A technology of fly ash carbon content and measurement method, applied in electrical digital data processing, instruments, design optimization/simulation, etc., can solve the problem of undiscovered fly ash carbon content, etc. Fast, sensitive, high-sensitivity results

Active Publication Date: 2018-05-25
重庆大唐国际石柱发电有限责任公司
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Problems solved by technology

At present, domestic coal-fired thermal power units have not found a soft measurement technology for the carbon content of fly ash that has been put into practice.

Method used

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  • Method for measuring carbon content of fly ash in power station boiler

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Embodiment Construction

[0063] see figure 1 , a method for measuring carbon content in fly ash of a utility boiler, comprising the steps of:

[0064] Step 1: Decompose the combustion factors affecting the carbon content of fly ash into hot air temperature factors, burnout factors, primary air pressure factors and coal quality factors;

[0065] Step 2. According to the orthogonal rotation method, the influence weights of the four factors are obtained by using the factor component matrix after the maximum variance orthogonal rotation, and a factor analysis model is established for the carbon content of the fly ash;

[0066] Step A: According to the orthogonal rotation method, the factor analysis model of the carbon content of the fly ash is obtained by using the factor component matrix after the maximum variance orthogonal rotation, specifically:

[0067] Carbon content of fly ash=-0.248F1+0.871F2+0.243F3-0.083F4...(1)

[0068] Among them: F1 is the hot air temperature factor, F2 is the burnout facto...

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Abstract

The invention discloses a method for measuring carbon content of fly ash in a power station boiler. The method is characterized in that 1, combustion factors influencing the carbon content of fly ashare decomposed into hot wind temperature factor, burnout factor, primary air pressure factor and coal quality factor; 2. according to the orthogonal rotation, a factor component matrix after the maximum variance orthogonal rotation is used to obtain the influence weight of four factors; and a factor analysis model is established for the carbon content of fly ash. Compared with other modeling methods, the modeling method is not constrained by algorithms, and the practicability is stronger in a DCS system; data is more comprehensive than other single algorithms; compared with hardware measurement, the adaptation of parameters is stronger; the method has the advantages of advancement, high sensitivity, good stability, high measurement accuracy, strong universality and the like, and can be widely used in electric power and other fields.

Description

technical field [0001] The invention relates to a method for measuring the carbon content of fly ash, in particular to a method for measuring the carbon content of fly ash of a power plant boiler. Background technique [0002] The carbon content of fly ash is an important index reflecting the combustion conditions in the pulverized coal boiler furnace, and there are many influencing factors. Use the factor analysis method to diagnose the combustion process in the furnace, and find a few comprehensive indicators from many related influencing factors to reflect the main information contained in the original factors, so that it is convenient for the operator to find out the factors affecting the combustion process in a timely and accurate manner. Ash carbon content is the main factor to adjust combustion and improve boiler efficiency. [0003] For every 1% reduction in the carbon content of fly ash, the boiler efficiency will increase by 0.31%, and the average coal consumption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/08
Inventor 朱祥柯
Owner 重庆大唐国际石柱发电有限责任公司
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