Gas burner

Abstract

The invention discloses a gas burner, which comprises a gas shell, a gas pipe communicated with the gas shell, and an air shell arranged at the periphery of the gas pipe in a surrounding way. The front end of the gas pipe is provided with an electrode used for ignition; the front end of the gas pipe is provided with a combustion chamber; the electrode is positioned in the combustion chamber; the rear end of the combustion chamber is connected with the front end part of the gas pipe through a wind disk; the combustion chamber is communicated with the air shell; the front end of the combustion chamber is provided with a shrunken flame nozzle; the periphery of the combustion chamber is sleeved with an outer pipe communicated with the air shell; and the front end of the outer pipe is provided with an annular combustion-supporting wind nozzle along the periphery of the flame nozzle. The gas burner has the advantages of performing two-stage combustion, combusting the gas fully, and making the energy conversion rate of the system high. The flame temperature field is more uniform and facilitates heat energy utilization; the smoke at the smoke outlet has high speed; and the emission of NOx in the smoke is less than 150ppm, so the environment is protected.

Description

technical field [0001] The invention relates to a part of a burner of an industrial heating gas furnace, in particular to a gas burner. Background technique [0002] The burners of the existing industrial furnace burners are all first-stage combustion burners. Due to their structural defects, the gas has only been burned once, which makes the combustion of the gas incomplete and incomplete, which affects the operation of the system. The energy conversion rate and the flame temperature field of the burner are not uniform, and the flue gas outlet velocity is not high, and the NOx emission in the flue gas component is large, which pollutes the environment and even affects the work of the system. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a gas burner with secondary combustion, complete combustion of gas and high energy conversion rate of the system. [0004] The technical solution adopted by the ...

AI Technical Summary

Problems solved by technology

[0002] The burners of the existing industrial furnace burners are all first-stage combustion burners. Due to their structural defects, the gas has only been burned once, which makes the combustion of the gas incomplete and incomplete, which affects the operation of the system. The energy conversion rate, the flame temperature field of the burner is not uniform, and the flue gas outlet velocity is not high, the NOx emission in the flue gas component is large, pollutes the environment, and even affects the work of the system

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