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Method and system for generating coal blending and blending combustion scheme of load section coal-fired boiler

A technology for coal-fired boilers and loads, which is applied in the generation method and system of coal blending schemes for coal-fired boilers in the load section. It can solve the problems of low blending efficiency, insufficient fineness, and poor blending flexibility, and achieve an increase in blending ratio. , the effect of increasing enterprise efficiency

Inactive Publication Date: 2020-02-04
DATANG HUANGDAO POWER GENERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventor found that most of the current power plants have rough blending, not fine enough under different load ranges, poor blending flexibility, and low blending efficiency

Method used

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  • Method and system for generating coal blending and blending combustion scheme of load section coal-fired boiler
  • Method and system for generating coal blending and blending combustion scheme of load section coal-fired boiler
  • Method and system for generating coal blending and blending combustion scheme of load section coal-fired boiler

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, this embodiment provides a method for generating a coal blending and blending scheme for a coal-fired boiler in the load section, which includes:

[0026] S101: According to the current coal loading time, determine that the preset time period after the current coal loading time is the load segment time corresponding to the current coal loading time.

[0027] In this embodiment, the fuel is loaded with coal four times a day, because the coal in the raw coal bunker is not burned out, and according to the coal consumption, the load segment corresponding to each load of coal is the load segment of the last 6-12 hours.

[0028] S102: Retrieve the corresponding relationship table between unit load and time, find out the highest load value in the load period corresponding to the current coal loading time, and use the highest load value as the blending reference load;

[0029] In the specific implementation, the establishment process of the correspon...

Embodiment 2

[0060] Such as figure 2 As shown, this embodiment provides a system for generating a coal blending and blending scheme for a coal-fired boiler in the load section, which includes:

[0061](1) Load segment time determination module, which is used to determine the preset time period after the current coal loading time as the load segment time corresponding to the current coal loading time according to the current coal loading time;

[0062] In this embodiment, the fuel is loaded with coal four times a day, because the coal in the raw coal bunker is not burned out, and according to the coal consumption, the load segment corresponding to each load of coal is the load segment of the last 6-12 hours.

[0063] (2) Blending reference load search module, which is used to retrieve the corresponding relationship table between unit load and time, find out the highest load value in the load period corresponding to the current coal loading time, and use the highest load value as the blendi...

Embodiment 3

[0093] This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the following figure 1 The steps in the method for generating the coal blending and blending scheme of the coal-fired boiler in the load section are shown.

[0094] In this embodiment, according to the current coal loading time, the preset time period after the current coal loading time is determined as the load segment time corresponding to the current coal loading time; The highest load value in the load period, and use the highest load value as the blending base load; finally, based on the blending base load, find out the total output of the pulverizing system, the calorific value of the furnace coal, and the sulfur content corresponding to the current blending base load. coal content, ash melting point, coal content and ash content of a single coal type, and generate coal blending and blending schemes. By blending the a...

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Abstract

The invention provides a method and a system for generating a coal blending and blending combustion scheme of a load section coal-fired boiler. The method for generating the coal blending and blendingcombustion scheme of the load section coal-fired boiler comprises the steps: according to current coal feeding time, determining a preset time period after the current coal feeding time as load section time corresponding to the current coal feeding time; calling a corresponding relation table of the unit load and the time, finding out the highest load value in the load section time correspondingto the current coaling time, and taking the highest load value as a blending reference load; calling a relation curve between the unit load and the total output of the coal pulverizing system, a relation curve between the unit load and the heat value of the coal as fired, a relation curve between the unit load and the sulfur content, a relation curve between the unit load and the ash melting point, and a relation curve between the unit load and the coal quantity and ash quantity of a single coal type; and respectively searching parameters such as the total output of the coal pulverizing system, the calorific value of coal as fired, the sulfur content, the ash melting point, the coal amount of a single coal type and the ash amount corresponding to the current blending reference load, and generating a coal blending combustion scheme.

Description

technical field [0001] The disclosure belongs to the technical field of coal blending and combustion of coal-fired boilers, and in particular relates to a method and system for generating a coal blending and blending scheme of a coal-fired boiler in a load section. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Coal prices continue to rise, resulting in severe operating conditions for power plants. Fuel costs account for about 80% of the total cost of power plants, and effectively reducing fuel costs is a powerful way to increase corporate benefits. The inventors found that currently most power plants have rough blending, not fine enough in different load ranges, poor blending flexibility, and low blending efficiency. Contents of the invention [0004] In order to solve the above problems, the present disclosure provides a method for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06313G06Q50/06
Inventor 陈清亮祁成陆源张建忠周延飞韩晓宁吴元三张立振蔡成功赵希亮袁博良
Owner DATANG HUANGDAO POWER GENERATION
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