Gas burning premixing high speed burning nozzle
A high-speed burner and gas premixing technology, which is applied in the direction of burner, combustion method, combustion type, etc., can solve the problems of limited mixing effect, large burner volume, and reduced combustion completeness, so as to achieve convenient combustion adjustment and high combustion efficiency. Intensive, fast-mixing results
Active Publication Date: 2007-06-27
中科合肥煤气化技术有限公司
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Problems solved by technology
The common defects of this kind of non-premixed burners are: the mixing process of gas and air is completed by the swirling device, the mixing effect is limited, the burner is large and heavy, the flame stability is poor, and it is easy to be affected by the outside of the burner. The influence of heating materials, complex structure, inconvenient maintenance, and because gas and air are mixed in the combustion chamber, the mixing process occupies a part of the volume of the combustion chamber, which not only reduces the combustion intensity per unit volume of the combustion chamber, but also reduces the completeness of combustion. degree
This type of high-speed burner has complex structure, inconvenient maintenance, and is not suitable for heating fluidized materials
[0010] So far, all high-speed burners are oriented to metallurgical furnaces, and these high-speed burners have some common disadvantages: bulky, complex structure, not suitable for heating small particle materials and liquid materials
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[0018] Referring to accompanying drawing 1, the gas premixed high-speed burner of the present invention includes gas pipe 1, air pipe 2, premix chamber 5, mixing ignition chamber 6 and combustion chamber 8, gas pipe 1, air pipe 2 and premix chamber 5 The three are coaxially arranged, the gas pipe 1 communicates with the premix chamber 5 through the gas inlet hole 3 at the bottom of the premix chamber 5, the air pipe 2 is covered outside the gas pipe 1, and passes through the gas pipe 2 located on the side wall of the premix chamber 5. The air inlet hole 4 communicates with the premix chamber 5, and the bottom of the combustion chamber 8 communicates with the mixed ignition chamber 6; the mixed ignition chamber 6 is filled with high-temperature porous ceramic catalyst 7; Smoke outlet aperture 9 is arranged.
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A high-speed burner with air-gas pre-mixing function for directly heating the fluidized solid particles is composed of the coaxially arranged gas tube, air tube and pre-mixing chamber, a mixing-igniting chamber containing high-temp porous ceramic catalyst, and a combustion chamber with cylindrical cap shape and fume outlet orifices on its side wall.
Description
technical field [0001] The invention relates to a gas premixed high-speed burner. Background technique [0002] The gas high-speed burners currently used can be divided into two types: premixed and non-premixed in terms of the mixing method of gas and air. The adjustment range of the premixed high-speed burner is small, and the gas and air cannot be lower than a certain flow rate, otherwise tempering will occur. The non-premixed type is not limited by this, and can supply preheated air; according to the use of the gas high-speed burner, it can be divided into non-temperature-regulated high-speed burners for rapid convection heating and temperature-regulated high-speed burners for heat treatment and drying furnaces. The former does not supply secondary air, the excess air coefficient changes little, and the outlet flue gas temperature adjustment range is small. The latter supplies secondary air, the air excess coefficient changes greatly, and the outlet flue gas temperature ...
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IPC IPC(8): F23D14/02
Inventor 那永洁朱治平吕清刚贺军王东宇
Owner 中科合肥煤气化技术有限公司
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