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A method for solving dry flue gas quantity generated by fuel combustion

A technology of dry flue gas volume and fuel composition, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as increasing the complexity of calculations

Inactive Publication Date: 2019-06-25
JIANGSU MARITIME INST
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Problems solved by technology

For conventional fuels such as coal, the excess air coefficient is determined by the oxygen content of flue gas O 2 , using the simplified calculation formula 21 / (21-O 2 ) is more convenient, and the error is within the allowable range of the project; however, for fuels with high nitrogen content, such as blast furnace gas, converter gas, producer gas, etc., an accurate calculation formula must be used. The amount of flue gas needs to be solved jointly with the cyclic iteration of the excess air coefficient, which will undoubtedly increase the complexity of the calculation

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  • A method for solving dry flue gas quantity generated by fuel combustion
  • A method for solving dry flue gas quantity generated by fuel combustion
  • A method for solving dry flue gas quantity generated by fuel combustion

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Embodiment Construction

[0038] The present invention will now be described in further detail.

[0039] A method for solving the amount of dry smoke generated by fuel combustion, the specific steps are as follows:

[0040] Step 1, obtain the required raw data; the obtained raw data includes but not limited to: flue gas oxygen content, fuel composition.

[0041] Step 2, according to the data obtained in step 1, solve the amount of dry smoke generated by fuel combustion, specifically including the following steps:

[0042] Step 2.1, calculate the theoretical dry flue gas volume produced by unit fuel combustion The calculation method is as follows:

[0043] Step 2.1.1, calculate the theoretical dry air volume required for unit fuel combustion according to the fuel composition Calculated as follows:

[0044] When the fuel is solid fuel, the calculation formula is as follows:

[0045]

[0046] In the formula, The theoretical dry air volume required for the combustion of solid fuel per unit mass...

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Abstract

The invention relates to a method for solving dry flue gas quantity generated by fuel combustion, which is characterized in that theoretical dry flue gas quantity is directly solved by adopting fuel components, and the actual dry flue gas quantity is obtained by solving the theoretical dry flue gas quantity in combination with flue gas oxygen content. According to the method for solving the dry flue gas quantity generated by fuel combustion, the actual dry flue gas quantity data can be obtained only by inputting fuel components and flue gas oxygen content data, the solving precision can be guaranteed, the calculation process can be simplified, and the method is suitable for all fuels and has important practical significance.

Description

technical field [0001] The invention relates to the technical field of fuel combustion, in particular to a method for solving the amount of dry smoke generated by fuel combustion. Background technique [0002] Fuel combustion calculation is one of the most important basic tasks in the design calculation and performance analysis of combustion equipment (such as boilers, industrial furnaces, etc.), and the calculation of the amount of dry flue gas generated by combustion is the focus of combustion calculation. In the traditional calculation method, the dry flue gas is mainly obtained by solving the theoretical dry air volume, theoretical dry flue gas volume and excess air coefficient. The theoretical dry air volume and theoretical dry flue gas volume are only determined by the fuel composition. When the fuel is determined When it is a fixed value, the core of solving the dry flue gas volume lies in the solution of the excess air coefficient. For conventional fuels such as coa...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 叶亚兰王宏明安翔
Owner JIANGSU MARITIME INST
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