fuel concentration radial stratified burner
A radial stratification and burner technology, applied in the direction of gas fuel burners, burners, combustion types, etc., can solve problems such as the lack of precise control of fuel concentration stratification, and achieve the effect of reducing mutual interference
Inactive Publication Date: 2019-01-22
JILIN UNIV
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Problems solved by technology
[0004] Traditional burners are generally used in the industrial field or civilian use. The main purpose of the fuel and air / oxygen ratio is to fully burn the fuel, and there is no precise control of the fuel concentration stratification.
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[0021] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0022] Design appropriate diameters and numbers of fuel, air / oxygen, and dilution gas inlets (1)(2)(3)(4)(5) for each ring so that the total area of the inlets is equal, and each layer is equal when the valve is fully open The volumetric flow rate, and the cross arrangement of the three kinds of air intake holes and the design of the burner housing with sufficient length make the mixture evenly mixed.
[0023] Through the design of the size of the partitions in the burner (mainly the design of the inner diameter), the cross-sectional areas of the mixed gas nozzles (8), (9), (10), (11), and (12) of each layer are equal to ensure When the volume flow rate of each ring nozzle is equal, the mixed gas flow rate of each ring is equal (the interlayer pressure difference is zero), which reduces the mutual interference of the mixed gas of each layer at th...
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The invention relates to a fuel concentration radial layering combustor device. The fuel concentration radial layering combustor device comprises a combustor casing (7), a mixing gas ignition device (6), a mixing gas spray hole (8), and annular spray spouts (9), (10), (11) and (12), wherein the annular spout (9) is a second annular spout, the annular spout (10) is a third annular spout, the annular spout (11) is a fourth annular spout, and the annular spout (12) is a fifth annular spout; by designing the size of the structure, each annular cross section is the same in area; the interior of each annular spout is provided with a fuel inlet, an air inlet and a nitrogen inlet, the fuel inlet, the air inlet and the nitrogen inlet of each annular spout are mutually crossed and distributed, and a long enough mixing cavity is designed, so as to uniformly mix mixing gas; by controlling the opening degrees of valves of the fuel inlets, the air inlets and the nitrogen inlets (1), (2), (3), (4) and (5), the mixing gas of each annular spout has the same air combustion ratio, the same volume flow (namely the same flow rate) and different fuel volume concentrations, so as to realize the fuel concentration layering in the radial direction of the combustor.
Description
technical field [0001] The invention belongs to the field of combustion test equipment and specifically designs a fuel concentration radially stratified burner. A burner is a general term for a device that injects, mixes, and burns fuel and air / oxygen in a certain way. This burner is an experimental device for studying the combustion mechanism of an internal combustion engine. Background technique [0002] The burner is a general term for devices that make fuel and air / oxygen spray out and combust in a certain way. There are many types and specifications of burners, including fuel oil, gas (coal gas), and coal (powdered coal / coal-water slurry). The application field is very wide, and the burner is required in industrial occasions that need to burn fuel to heat materials or react. The burner uses air as a combustion-supporting gas, but the oxygen content in the air is very low, only 21%, and the rest are incombustible gases such as nitrogen and carbon dioxide. These gases w...
Claims
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IPC IPC(8): F23D14/02F23D14/62F23D14/46F23D14/48F23N1/08
CPCF23D14/02F23D14/46F23D14/48F23D14/62F23N1/08
Inventor 韩永强蔚向锋李润钊许允张雷贾春辉
Owner JILIN UNIV