A burner suitable for ultra-long radiant tube

Abstract

The invention discloses a burner suitable for an ultra-long radiant tube, which comprises a shell, wherein the front end of the shell is provided with an ignition electrode; the back end of the shell is provided with an air conduit; a combustion-supporting air inlet is opened formed at the front side of the air conduit; a gas conduit is installed inside the shell, wherein the inlet of the gas conduit is arranged on the shell; the gas conduit passes through the gas conduit and extends to the back side of the air conduit; and the output end of the gas conduit is provided with a swirler; the other end of the swirler is provided with a combustion chamber; a secondary air circular seam is left between the combustion chamber and the air conduit; a radiant tube is sleeved at the back side of the air conduit; the combustion chamber is opened towards the radiant tube; the burner realizes multilevel combustion technical effect through rational structural modification, specifically modification of the combustion chamber, thereby therefore the combustion is more fuller and more complete; and the flame temperature is uniform; at the same time the combustion flame is changed into longer; and the burner is the special burner suitable for the ultra-long radiant tube whose of which length is 10-50 meters.

Description

technical field [0001] The invention relates to a burner, in particular to a burner suitable for an ultra-long radiant tube. Background technique [0002] Burner Burners are widely used in industrial furnace heating to distribute fuel and combustion-supporting air and spray out combustion. Currently, the commonly used burner combustion methods are mainly premixed and semi-premixed. The gas and combustion-supporting air are mixed violently, and the flame The burning speed is fast, the flame is short, and the temperature is concentrated, so it is not suitable for super-long radiant tubes above 10 meters; on the other hand, if it is used for super-long radiant tubes, the resistance is large and it is not easy to ignite. And the combustion noise is big. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides a burner suitable for an ultra-long radiant tube. [0004] The technical solution adopted by the present invent...

AI Technical Summary

Problems solved by technology

[0002] Burner Burners are widely used in industrial furnace heating to distribute fuel and combustion-supporting air and spray out combustion. Currently, the commonly used burner combustion methods are mainly premixed and semi-premixed. The gas and combustion-supporting air are mixed violently, and the flame The burning speed is fast, the flame is short, and the temperature is concentrated, so it is not suitable for ultra-long radiant tubes over 10 meters; on the other hand, if it is used for ultra-long radiant tubes, the resistance is large and it is not easy to ignite

And the combustion noise is loud

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