Combustion boiler operation control method and system

A technology of boiler operation and control method, applied in the field of thermal power plants

Active Publication Date: 2014-02-26
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0005] Based on this, it is necessary to provide a combustion boiler operation control method and system that can correctly control the operation of the combustion boiler for the problem that the general combustion boiler operation control method cannot correctly control and adjust the combustion boiler operation, and improve boiler operating efficiency

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  • Combustion boiler operation control method and system
  • Combustion boiler operation control method and system
  • Combustion boiler operation control method and system

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0029] Such as figure 1 As shown, a combustion boiler operation control method, comprising steps:

[0030] S200: Define the grid node area in the calculation area as (1, Xmax)*(1, Ymax)*(1, Zmax), where Xmax, Ymax, and Zmax are respectively the largest in the three-dimensional coordinate axis direction of the preset calculation area grid points;

[0031] S300: Generate equations in the form of characteristic waves of each corner point of the grid node area in the calculation area;

[0032] S400: Using parameters in the form of characteristic waves of each corner point of the grid node area, through mathematical...

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Abstract

The invention provides a combustion boiler operation control method and system. The method includes defining a grid node region in a computational region, generating characteristic wave form parameters of all corners of the grid node region, converting the parameters to generate parameters of pressure and speed and time derivatives of compressible fluid on the corners, substituting the parameters of the pressure and speed and time derivatives of the compressible fluid into density of the compressible fluid and the characteristic wave parameters of the corners, generating corner solving variable time advancing parameters, determining corner boundary conditions in the compressible fluid, performing unsteady compressible-flow direct numerical simulation on a combustion condition in a combustion boiler, and controlling the operation of the combustion boiler according to numerical simulation results. By the combustion boiler operation control method, strict mathematical logic computation is performed, the whole boundary condition setting process is stable and accurate, the operation condition of the combustion boiler can be simulated accurately, and the operation of the combustion boiler is controlled.

Description

technical field [0001] The invention relates to the technical field of thermal power plants, in particular to a combustion boiler operation control method and system. Background technique [0002] At present, in thermal power plants, in order to ensure the normal operation of the combustion boiler, it is necessary to simulate the combustion situation of the combustion boiler, and then adjust the operation of the combustion boiler according to the simulation results. With the development of parallel computer hardware and software technology, direct numerical simulation of large-scale flow and combustion has become possible. In addition, researchers have carried out numerical simulation of chemical reaction combustion flow, using direct numerical simulation of unsteady compressible flow To simulate the combustion situation in the combustion boiler, the direct numerical simulation of the unsteady compressible flow can well simulate the combustion situation in the combustion boi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N5/00G06F17/50
Inventor 李德波
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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