Method for acquiring a thermal power generating unit boiler mixed coal optimized coal blending scheme

An acquisition method, technology of thermal power units, applied in data processing applications, forecasting, calculations, etc., can solve the difficulty of increasing staff screening, it is difficult to fully consider the impact of the optimal value of the difference in coal type ratio, large manual errors, etc. problems, to achieve the effect of ensuring economy and environmental protection

Inactive Publication Date: 2016-08-24
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +1
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Problems solved by technology

Due to the diversity and complexity of coal sources in power plants, the number of coal blending combinations may be large, which greatly increases the difficulty of...

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  • Method for acquiring a thermal power generating unit boiler mixed coal optimized coal blending scheme
  • Method for acquiring a thermal power generating unit boiler mixed coal optimized coal blending scheme
  • Method for acquiring a thermal power generating unit boiler mixed coal optimized coal blending scheme

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Embodiment Construction

[0018] The invention aims at the problem that it is difficult to determine the optimal coal blending scheme of a power station boiler, and proposes a method for obtaining an optimal coal blending scheme of a boiler with high efficiency and low pollution. Such as figure 1 As shown, the specific implementation method is:

[0019] (1) Collect daily single-coal data for power plant boilers, and establish a single-coal coal quality information database;

[0020] (2) According to the combustion needs of the boiler, the low-level calorific value, volatile matter, moisture, ash and coal price are used as the objective function to establish a multi-objective fuzzy mathematical model to obtain multiple sets of mixed coal quality parameters that meet the requirements, which are marked as " Multiple groups of mixed coal coal quality parameter results", including the comprehensive coal price, recorded as "comprehensive coal price";

[0021] (3) Establish a boiler NOx emission prediction ...

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Abstract

Provided is a method for acquiring a thermal power generating unit boiler mixed coal optimized coal blending scheme. The method, by using an objective function with maximum boiler efficiency, lowest mixed coal cost, and minimum pollutant discharge, establishes an optimized coal blending mathematic model, including a multi-objective fuzzy mathematic model, a boiler NOx discharge prediction model, and a boiler efficiency computing module, and enables the in-boiler coal blending scheme to be reasonable so as to guarantee the economical efficiency and the environmental friendliness of the operation of the boiler. The method comprises establishing the optimized coal blending mathematic model by using the objective function with maximum boiler efficiency, lowest mixed coal cost, and minimum pollutant discharge and using the boiler NOx discharge prediction model, a multi-objective fuzzy decision model, and the boiler efficiency computing module as a basis, and achieve prediction by using support vector machine technology and achieve optimization by using multi-objective fuzzy mathematic technology. The method is used for acquiring the thermal power generating unit boiler mixed coal optimized coal blending scheme.

Description

technical field [0001] The invention relates to a method for obtaining an optimal coal blending scheme for thermal power unit boilers, and belongs to the technical field of thermal power unit operation mixed coal combustion optimization. Background technique [0002] At present, my country's electricity production is mainly based on coal-fired power generation, and most of the coal types supplied by power plants are diversified, with many varieties and large differences in characteristics. For example, different types of raw coal are directly sent to the boiler for combustion. Different, problems such as poor combustion degree of the boiler, low combustion efficiency, coking, fire extinguishing, overheating of the heating surface and explosion of the tube, and excessive discharge of pollutants occur from time to time, which seriously affect the safety and economy of boiler operation, and are not conducive to the stability of the power grid. Production. Therefore, for coals wi...

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Application Information

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IPC IPC(8): G06Q10/04
CPCG06Q10/04
Inventor 桂良明夏永俊刘发圣
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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