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: 2016-06-08
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 the parameters in the form of characteristic waves of each corner point of the grid node area, through mathemat...

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Abstract

The invention provides a method and system for controlling the operation of a combustion boiler, which is defined in the grid node area of ​​the calculation area, generates parameters in the form of characteristic waves of each corner point of the grid node area, and converts the pressure and velocity time of the compressible fluid on the generated corner point The parameters of the derivative are substituted into the density of the compressible fluid and the characteristic wave parameters of the corner points to generate the corner point solution variable time advance parameters, determine the boundary conditions of the corner points in the compressible fluid, and perform unsteady compressible analysis of the combustion conditions in the combustion boiler Direct numerical simulation of flow, and control of combustion boiler operation based on numerical simulation results. The operation control method of the combustion boiler of the present invention undergoes strict mathematical logic calculations, and the entire boundary condition setting process is stable and accurate, and can accurately simulate the operation of the combustion boiler to control the operation of the combustion boiler.

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...

Claims

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Application Information

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