Opening circular road whirling premixing upward-spraying backflow preheat burner

A split ring and burner technology, applied in the direction of burners, gas fuel burners, combustion methods, etc., can solve problems such as low efficiency, unstable combustion, and environmental pollution
CN101749706BInactive Publication Date: 2011-07-20ๅˆ˜ไธ–่š
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
ๅˆ˜ไธ–่š
Publication Date
2011-07-20
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to an opening circular road whirling premixing upward-spraying backflow preheat burner, which effectively solves the problems that the fuel consumption is high, combustion is instable, the combustion intensity is low, combustion air velocity temperature distribution is non-uniform, the efficiency is low and the environment is polluted; the structure is that: a semisphere topcylindrical shape with closed upper end and a downward opening is formed by a cylindrical wall body and an arch top at the upper part of the cylindrical wall body, a combustion chamber is arranged atthe upper part in the cylindrical wall body in the arch top, a pre-mixing circular road with an opening at the upper part is circularly distributed on the inner wall of the cylindrical wall body, thepre-mixing circular road is respectively communicated with a coal gas inlet pipe and an air inlet pipe through a coal gas diversion channel and an air diversion channel, diversion guiding blocks are uniformly distributed in the coal gas diversion channel and the diversion channel, a current-limiting ring is communicated with the opening at the upper part of the premixing circular road; the opening circular road whirling premixing upward-spraying backflow preheat burner effectively solves the problems low-heat value gas combustion is instable, the combustion intensity is low and the combustiontemperature is low, and simple structure of the invention is obviously superior to the structures of a flameless burner and a staggering injection rapid mixing combustor which are arranged in an airflow spray pipe.
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Description

1. Technical field

[0001] The invention relates to a gas fuel combustion device, in particular to an open loop swirl premixed upper jet backflow preheating burner applied to industrial heating hot blast furnaces and industrial kilns. 2. Background technology

[0002] At present, in various gas burners burning low calorific value gas (such as blast furnace gas and producer gas), there are sleeves or rectangular diffusion combustion structures in which the concentrated gas injection and multi-stream jets around the air are cut in, and the gas and air are stratified. Injection mixed combustion structure, gas and air staggered injection mixed combustion structure, internal premixed injection combustion structure in which gas and air are pre-mixed, and the newly developed burner structure in which gas and air staggered upward injection mixed combustion airflow turns back, etc. In short, the burners of industrial furnaces have completed the transition from sleeve burners to rectan...

Claims

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