Coal-fired boiler energy efficiency on-line monitoring method based on chemical balance

A technology for coal-fired boilers and energy efficiency, applied in the testing of machines/structural components, measuring devices, instruments, etc., can solve problems such as inaccurate energy efficiency data and inability to realize online monitoring of boilers

CN106323657AActive Publication Date: 2017-01-11SHENYANG ACAD OF ENVIRONMENTAL SCI

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: SHENYANG ACAD OF ENVIRONMENTAL SCI
Publication Date: 2017-01-11

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Abstract

The invention discloses a coal-fired boiler energy efficiency on-line monitoring method based on chemical balance. The coal-fired boiler energy efficiency on-line monitoring method comprises steps of monitoring a boiler working medium parameter, calculating to obtain boiler effective heat, monitoring a boiler smoke parameter, an ash parameter and a wind supply parameter, calculating total quantities of C,H and S which are generated through boiler combustion through chemical equilibrium, using combustion heat of C, H and S to calculate total heat inputted into the boiler, calculating heat efficiency of the boiler in real time according to effective heat and total heat of the boiler, and calculating boiler combustion efficiency in real time according to concentration of CO2 and CO. The beneficial effects of the coal-fired boiler energy efficiency on-line monitoring method are that: all data is obtained through testing online in real time, boiler heat efficiency can be calculated in real time through a chemical equilibrium theory, boiler heat efficiency and combustion efficiency can be monitored online, and a boiler real time energy efficiency level and a combustion level can be reflected accurately.

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Description

technical field

[0001] The invention relates to an online monitoring method for the operating thermal efficiency of a coal-fired boiler, which is used for monitoring the energy efficiency level of the coal-fired boiler. Background technique

[0002] At present, my country's energy structure is dominated by coal. In addition to coal-fired power station boilers for power supply, many coal-fired industrial boilers are also major users of coal consumption. The thermal efficiency of coal-fired industrial boilers is low, the utilization efficiency of a large amount of coal is extremely low, and a large amount of air pollutants are produced, which brings great difficulties to my country's total coal control, energy conservation and emission reduction, and air pollutant control. .

[0003] In order to promote the economical and efficient operation of coal-fired industrial boilers, the state has issued standards and norms such as "Economic Operation of Industrial Boilers", "Energy-Sa...

Claims

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