Double-rotational-flow flat flame burner

Abstract

The invention discloses a double-rotational-flow flat flame burner. The double-rotational-flow flat flame burner comprises a center air duct, a gas pipe, a main air pipe and a burner body, wherein a combustion channel is arranged on the burner body; the center air duct, the gas pipe and the main air pipe are sequentially and coaxially arranged from inside to outside; the burner body is arranged at an air outlet of the main air pipe; the combustion channel coaxially communicates with the air outlet of the main air pipe; a gas hydrocyclone and a main air hydrocyclone are arranged at the positions, located at the air outlet, of the gas pipe and the main air pipe correspondingly; the gas hydrocyclone is arranged between the center air duct and the gas pipe; the main air hydrocyclone is arranged between the gas pipe and the main air pipe; and an air outlet of the center air duct and the air outlet of the main air pipe are located in front of an outlet of the gas pipe. By means of the structure, air flow can be better attached to the wall to be spread to burn, a stable fire plate is formed, the regulating ratio of the burner is improved, especially when the load of the burner is small, flat flame can still be formed, normal operation can be achieved under the working condition of the imbalance air-fuel ratio, and the adjustability, applicability and reliability of the flat flame burner are improved.

Description

technical field [0001] The invention belongs to the field of burners, and in particular relates to a gas double-swirl leveling flame combustion device capable of forming a stable fire plate under the condition of large fluctuations in burner capacity and imbalanced air-fuel ratio. Background technique [0002] The flat flame burner is a very important heating equipment on the industrial heating furnace. The traditional flat flame burner uses the centrifugal effect of the rotating air and the wall attachment effect to make the flame adhere to the furnace wall, forming a circle centered on the center of the burner outlet. Disc-shaped flames spread out all around. The flat flame burner has the following advantages, which can improve the temperature uniformity and radiation heat transfer capacity of the furnace wall. It can reduce the furnace height, improve the furnace pressure distribution, reduce the idle area of ​​the furnace, and reduce the heat dissipation area of ​​the fu...

AI Technical Summary

Problems solved by technology

In the actual production process, the actual heating capacity needs to be adjusted according to the temperature requirements of the workpiece to be heated, and the actual capacity of the burner often fluctuates within a wide range; when the heat load is small, it is difficult for the traditional flat flame burner to form Flat flame to meet production needs, urgent need for further improvement

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