High-heat-value fuel low-nitrogen single heat storage burner

Abstract

A High-heat-value fuel low-nitrogen single heat storage burner comprises a burner brick and a heat storage box body which are connected together; the outer end of the heat storage box body is connected with an air feeding pipe, and a heat storage body is arranged in an inner cavity of the heat storage box body; the burner brick is internally provided with an air channel and a fuel gas channel; theair channel comprises a primary air channel and a secondary air channel; and the fuel gas channel is arranged in the primary air channel. The burner achieves primary oxygen deficient combustion and secondary oxygen excess combustion by being provided with the primary air channel and the secondary air channel; the good mixing ratio of fuel gas to air is achieved by controlling the cross section area ratio of the fuel gas channel to the primary air channel; the shape and length of flame are adjusted by designing the cross section area ratio of the secondary air channel to the primary air channel, and the angle of the secondary air channel and the primary air channel; and two-time staged combustion can be conducted, heat storage type low-nitrogen combustion is achieved, and combustion flametoo high in local temperature is not generated.

Description

technical field [0001] The invention relates to a low-nitrogen single-storage type regenerative burner using gas with high calorific value as fuel, and belongs to the technical field of burners. Background technique [0002] For various single-storage regenerative burners that use high-calorific-value gas as fuel, the biggest problem at present is that the secondary mixing of fuel and combustion-supporting air cannot achieve multi-stage combustion, which makes the local temperature of the combustion flame too high to be able to burn. Realize regenerative low nitrogen combustion. [0003] CN109945192A discloses a high calorific value fuel concentric jet air single regenerative burner, which includes a shell, refractory and heat insulating materials, anchors, heat storage honeycomb body, block bricks and burner bricks; the burner bricks are provided with air passage and gas passage; the air passage has several and is arranged around the centerline of the burner brick at an in...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the existing single regenerative regenerative burner with high calorific value gas as fuel cannot realize multi-stage combustion nitrogen combustion, the present invention provides a regenerative low-nitrogen combustion capable of secondary staged combustion, which does not High-calorific-value fuel low-nitrogen single regenerative burner that produces a combustion flame with excessive local temperature

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