Burners and Combustion Systems
A technology of burner and combustion section, which is applied in the direction of burner, gas fuel burner, combustion chamber, etc., to achieve the effect of accelerating diffusion, benefiting oxygen concentration, and reducing oxygen concentration
Active Publication Date: 2017-02-15
HUNAN BALING FURNACE ENERGY CONSERVATION
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Problems solved by technology
However, the burners used in the prior art will produce a large amount of NOx during the combustion process. As an example, in order to make the furnace temperature of the combustion furnace reach 1200°C, the NOx emission during high-temperature combustion under the condition of air premixing coefficient a=1 up to 5000ppm
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[0019] The present invention will be further described below in conjunction with accompanying drawing.
[0020] Such as figure 1 As shown, the burner proposed by the present invention includes a primary combustion section 10 and a secondary combustion section 20. The fuel and primary combustion air are first mixed in the primary combustion section 10 for primary combustion, and then enter the secondary combustion section 20 for Secondary combustion, while secondary combustion air is introduced into the secondary combustion section 20 to participate in secondary combustion. The burner and its parts of the present invention will be described in detail below.
[0021] It should be noted that the fuel described in the present invention is a gaseous fuel, such as natural gas or coal gas. In addition, the primary and secondary combustion air supplies are each less than the total amount of combustion air required for complete combustion of a given fuel. As a preferred example, the...
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The invention relates to a combustor and a combustion system. The combustor comprises a primary combustion section and a secondary combustion section, wherein the primary combustion section is of a hollow pipe structure and comprises a mixing area and a primary combustion area, the mixing area and the primary combustion area are communicated through fluid, the mixing area is close to the outer side of the primary combustion section, the secondary combustion section is of a hollow pipe structure and connected to the inner end of the primary combustion section and comprises a secondary combustion area, the secondary combustion area and the primary combustion area are communicated through fluid, a fuel inlet and a primary combustion air inlet are formed in the outer side of the mixing area, and a secondary combustion air inlet is formed in the outer side of the secondary combustion area. When the combustor is used for production, the amount of discharged NOx can be effectively reduced, and environment protection is facilitated.
Description
technical field [0001] The invention relates to the technical field of high-temperature combustion, in particular to a burner. Furthermore, the invention also relates to a combustion system comprising said burner. Background technique [0002] Industrial furnaces are usually produced with burners, which can obtain high-temperature flames. During production, the burner mixes fuel and combustion air and burns to obtain high-temperature flue gas. However, the burners used in the prior art will produce a large amount of NOx during the combustion process. As an example, in order to make the furnace temperature of the combustion furnace reach 1200°C, the NOx emissions during high-temperature combustion under the condition of air premixing coefficient a=1 up to 5000ppm. Therefore, there is an urgent need for a burner with low NOx emissions. Contents of the invention [0003] In view of the above problems, the present invention proposes a burner, which can effectively reduce N...
Claims
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IPC IPC(8): F23D14/02F23D14/46F23C3/00F23C7/00
Inventor 周绍芳
Owner HUNAN BALING FURNACE ENERGY CONSERVATION