Front premixing plane burner

CN223076920UActive Publication Date: 2025-07-08ZHONGYE-CHANGTIAN INT ENG CO LTD
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Patent Information

Application Number
CN202421829195.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-07-08
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The existing plane burner burner has low volume thermal strength, small thermal load and high NOx emissions, mainly because the fuel and air are not premixed before combustion and the mixing uniformity is poor, resulting in insufficient combustion and high NOx emissions.

Method used

By setting the fuel-assisted gas channel and the fuel channel coaxially, the fuel and the fuel-assisted gas are premixed before entering the fire channel, and the combustion gas is diluted through the flue gas return channel. The temperature-sensitive expansion and contraction support plate is designed to adjust the combustion position to ensure combustion stability.

Benefits of technology

It significantly improves the volumetric thermal strength and thermal load of the burner, reduces NOx emissions, avoids the risk of backfire, and is simple in structure and easy to produce.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a front premixing plane burner which comprises a burner block, a combustion-supporting gas channel, a fuel channel, an external expansion type flame path, a smoke backflow channel and the like. Through the special design of a gas inlet mechanism, an air inlet mechanism and other mechanisms, gas and air can be fully mixed before entering a flame path to be combusted, the combustion efficiency is high, and the volume heat intensity is high; meanwhile, due to the fact that fuel gas and air are fully mixed before combustion, local high temperature caused by uneven mixing is eliminated, and therefore NOx emission is low. In addition, part of combustion smoke can be sucked into unreacted air and fuel gas, the concentration of reaction gas is diluted, the intensity of combustion reaction is reduced, and NOx emission in the combustion process is further reduced. Furthermore, the device has the characteristics of simple structure, easiness in operation, low production input cost, easiness in large-scale production, popularization and application, wide market prospect, remarkable social and economic benefits and the like.
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