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Simulation monitoring method of premixed combustion of foamed ceramic burner

A foamed ceramic, premixed combustion technology, applied in the combustion method, the safety device of the combustion chamber, the combustion chamber, etc., can solve the problem that the premixed flame behavior and flame shape cannot be obtained, the polluting gas cannot be accurately measured, and the radiation cannot be accurately described. Heat loss and other issues to ensure reliability, stability, and high accuracy

Active Publication Date: 2014-03-05
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0003] However, due to the intermediate process of the incomplete combustion reaction in the pre-mixed combustion in the boiler, the traditional technology cannot accurately measure the polluting gases in the flue gas, such as CO, NO X Emissions such as radiative heat loss cannot be accurately described, and the behavior and flame shape of the premixed flame in the micropores cannot be obtained

Method used

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  • Simulation monitoring method of premixed combustion of foamed ceramic burner
  • Simulation monitoring method of premixed combustion of foamed ceramic burner
  • Simulation monitoring method of premixed combustion of foamed ceramic burner

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0016] Such as figure 1 As shown, it is a schematic flow chart of the premixed combustion simulation monitoring method of the foam ceramic burner in an embodiment of the present invention, including the following steps:

[0017] S11, generating a physical model of the ceramic foam burner;

[0018] The ceramic foam burner of the present embodiment is as figure 2 As shown in -A, the whole device includes parts such as burner, igniter, heat insulation layer and vent hole. The burner is mainly composed of a premixing chamber that can fully mix gas and air and a combustion tube with a porous ceramic foam core. The combustion pipe is vertically upward, and gas and air enter the chamber from the lower end of the premix chamber respectively. The premixing chamber is filled with...

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Abstract

The invention provides a simulation monitoring method of premixed combustion of a foamed ceramic burner. The simulation monitoring method comprises the following steps that a physical model of the foamed ceramic burner is generated; a premixed combustion control model of the foamed ceramic burner is established through a volume control energy balance method; the premixed combustion control model is disjointed, so that a discrete control model is obtained; numerical simulation is conducted on the premixed combustion of the foamed ceramic burner according to the discrete control model and the physical model, so that a combustion model of the foamed ceramic burner is obtained; the discharge of pollution gas in the foamed ceramic burner is monitored according to the combustion model. By means of the simulation monitoring method, the discharge of the pollution gas in the foamed ceramic burner can be monitored.

Description

technical field [0001] The invention relates to the technical field of foam ceramic burners, in particular to a premixed combustion simulation monitoring method of a foam ceramic burner. Background technique [0002] Premixed combustion in porous media is a complex process involving chemical reactions and the coupling of three heat transfer modes: conduction, convection and radiation. Theoretical study of premixed combustion in porous media and the establishment of a mathematical model of combustion are the directions of many researchers. Most researchers have established a combustion mathematical model through appropriate simplification on the basis of experimental research, and then obtained results that are basically consistent with the experiment through numerical calculation methods, verifying the effectiveness of the combustion model. It is generally assumed that the porous medium is an isotropic inert ash body, ignoring the pressure drop and scattering in the porous ...

Claims

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Application Information

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IPC IPC(8): F23M11/04
Inventor 李德波
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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