Regenerative Porous Media Burner Components

Abstract

The invention discloses a heat accumulating type porous medium combustor component comprising a furnace body, two combustors, a smoke discharge pipe component and a gas supply pipe component, wherein the furnace body is connected between the two combustors; each of the combustors comprises a heat accumulating chamber, a combustion chamber and an igniter; the heat accumulating chambers are filled with heat accumulators; the combustion chambers are respectively connected with the heat accumulating chambers and the furnace body; the combustion chambers are filled with porous mediums; and a fire source is supplied by the igniters. The smoke discharge pipe component is connected with the heat accumulating chambers of the two combustors respectively. The gas supply pipe component is connected with the heat accumulating chambers of the two combustors respectively to alternately provide a mixed gas, and when the gas supply pipe component provides the mixed gas for one of the heat accumulating chambers, generated smoke is discharged through the other heat accumulating chamber and the smoke discharge pipe component. By utilizing the heat accumulating type porous medium combustor component, combustion of the mixed gas is stable and sufficient, heat production amount is increased, pollutant discharge amount is reduced, the use ratio of waste heat of discharged smoke is improved, the temperature field in a furnace hearth is uniform, heat load of the combustors has adjustability, and the combustors can adapt to fuel with low heating value.

Description

technical field [0001] The invention relates to the field of burners, in particular to a regenerative porous media burner assembly. Background technique [0002] In conventional burners and regenerative burners in related technologies, the combustion of gaseous fuel is mainly space combustion characterized by free flames. Due to the low thermal conductivity and radiation performance of the gas, the temperature gradient near the flame is steep and the distribution is uneven. [0003] And when the regenerative burner in the related art uses gaseous fuel with low calorific value, due to the high ignition point, narrow ignition range, poor combustion stability and easy flameout of low calorific value gaseous fuel in free space, there is a safety hazard in its use process. Hidden danger. Therefore, when using fuel with a low calorific value (such as a calorific value lower than 1000kcal / Nm 3 Blast furnace gas) and the furnace temperature is required to be low (such as lower th...

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Problems solved by technology

Due to the low thermal conductivity and radiation performance of the gas, the temperature gradient near the flame is steep and the distribution is uneven

[0003] And when the regenerative burner in the related art uses gaseous fuel with low calorific value, due to the high ignition point, narrow ignition range, poor combustion stability and easy flameout of low calorific value gaseous fuel in free space, there is a safety hazard in its use process. Hidden danger

Therefore, when using fuel with a low calorific value (such as a calorific value lower than 1000kcal / Nm 3 Blast furnace gas) and the furnace temperature is required to be low (such as lower than 800 ℃), the regenerative burner needs to add an eternal flame device using high-quality fuel (such as coke oven gas or natural gas), so that the high-quality fuel Increased consumption, leading to higher operating costs, which limits the benefits of regenerative combustion technology and limits the use of low calorific value fuels

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