Feedforward control combustion adjustment method based on temperature field prediction of combustion region

A technology of combustion area and feed-forward control, which is applied in the direction of combustion method, control combustion, combustion signal processing, etc., can solve difficult problems and other problems, and achieve the effect of small amount of calculation, guaranteed accuracy and strong generalization ability

Inactive Publication Date: 2019-09-24
STATE GRID HEBEI ENERGY TECH SERVICE CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the face of old problems and new situations, it is even more difficult to judge the operating conditions of the unit in real time and make reasonable adjustments only by existing methods

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  • Feedforward control combustion adjustment method based on temperature field prediction of combustion region

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Embodiment Construction

[0021] The method of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific examples of the present invention. Apparently, what has been described is only an implementation example of the present invention, not all implementation examples. Based on the implementation examples in the present invention, all other implementation examples obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. Similar extensions, therefore, the present invention is not limited by the specific implementation examples dis...

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Abstract

The invention discloses a feedforward control combustion adjustment method based on temperature field prediction of a combustion region. The method comprises the following steps: (1) establishing a physical model of a combustor and a hearth combustion region for a specific boiler by means of modeling software; (2) selecting a reasonable mathematic model and setting corresponding boundary conditions; (3) calculating numerical values; (4) correcting the calculated results; (5) summarizing the calculated results and paralleling the calculated results with input variables to establish a training database of a prediction model; (6) carrying out neural network training on data of the database by means of MATLAB to obtain a prediction model; (7) inputting expected operating parameters of the combustor to obtain a prediction temperature field; (8) summarizing prediction rules to form a set of combustion optimization schemes which meet safe and economical operations of a coal-fired power plant at the same time; and (9) adjusting the needed temperature field of the combustion region according to the optimization schemes. The method is characterized in that feedforward adjustment of the temperature field of the combustion region is achieved, so that safety and energy conservation of a unit are facilitated.

Description

[0001] The present invention claims the priority of the Chinese patent application submitted to the China Patent Office on May 09, 2019, the application number is 201910381956.3, and the title of the invention is "A Feedforward Control Combustion Adjustment Method Based on the Prediction of the Temperature Field of the Combustion Area", all of which The contents are incorporated herein by reference. technical field [0002] The invention belongs to the technical field of operation adjustment of coal-fired power plants, and in particular relates to a feedforward control combustion adjustment method based on temperature field prediction in a combustion area. Background technique [0003] China is a big country of coal production and consumption, and coal-fired power plants are the main coal-consuming equipment in my country. Therefore, the prevention and control of environmental pollution caused by coal combustion in coal-fired power plants and the optimal control of unit opera...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N5/00
CPCF23N5/00F23N2223/10
Inventor 贾永会杜建桥张保瑞
Owner STATE GRID HEBEI ENERGY TECH SERVICE CO LTD
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