A staged gas low nitrogen burner
A low-nitrogen burner, gas technology, applied in the direction of gas fuel burners, burners, combustion types, etc., can solve the problems of incomplete combustion, low combustion efficiency, and unstable combustion
Active Publication Date: 2018-11-27
北京水木清源环保科技有限公司
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Problems solved by technology
Some existing low-nitrogen burners are mainly based on combustion classification and dense-lean combustion, but the fuel and air distribution is unreasonable, which often causes problems such as incomplete combustion, unstable combustion, low combustion efficiency, and NOx emissions that do not meet environmental protection requirements.
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Embodiment Construction
[0042] figure 1 It is a front view of a staged gas low-nitrogen burner according to an embodiment of the present invention. figure 2 It is a right side view of a staged gas low nitrogen burner according to an embodiment of the present invention. Such as figure 1 shown, see also figure 2 , the staged gas low-nitrogen burner of this embodiment may generally include a distributor 10 , a guide plate 20 , an ignition electrode 30 and a combustion cylinder 40 .
[0043] The distributor 10 is used to provide a flow path for the gas and air, and includes a body 11 and a plurality of fuel nozzles 12 . The body 11 is a cylinder with an interlayer 111, the exterior of which is an interlayer 111, and the interior is a hollow part 112. The interlayer 111 is used for gas accumulation, and a gas inlet 113 is formed at the interlayer 111. The interlayer 111 A plurality of gas distribution cavities 114 arranged at intervals are formed on the top, and the hollow part 112 is used for passi...
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The invention discloses a gas-graded low-NOx burner and belongs to the field of burners. The gas-graded low-NOx burner comprises a distributor, a flow guide disc, an ignition electrode and a burning cylinder, wherein the distributor is used for providing flow paths for gas and air and comprises a body and a plurality of gas spray pipes, the gas is sprayed out at the gas spray pipes in a graded manner, and straight flow air is formed by the air through space defined by a hollow part and the plurality of gas spray pipes; the flow guide disc is located at an outlet of an air flow path and used for enabling the air to form rotary air flow; the ignition electrode is located on one side of the distributor and realizes ignition through the gas provided by the gas spray pipe close to the ignition electrode; and the burning cylinder is used for providing a mixing and burning occasion for the gas and the air. Three layers of combustion air and two layers of gas are formed in the gas-graded low-NOx burner, layering distribution is realized, the flame temperature and the concentration of oxygen in flue gas are reduced, emission of NOx is reduced effectively, and the current environmental requirements are met.
Description
technical field [0001] The invention relates to the field of burners, in particular to a staged gas low-nitrogen burner. Background technique [0002] Nitrogen oxides are one of the culprits of air pollution, and the country's emission restrictions on nitrogen oxides are becoming stricter. Therefore, my country has formulated relevant standards for the emission of air pollutants from boilers, and it is urgent to transform boilers to low nitrogen. [0003] The type of combustion equipment and burner is one of the factors that affect the NOx emitted by the boiler. Some existing low-nitrogen burners are mainly based on combustion classification and dense-lean combustion, but the unreasonable distribution of fuel and air often causes problems such as incomplete combustion, unstable combustion, low combustion efficiency, and NOx emissions that do not meet environmental protection requirements. Contents of the invention [0004] The purpose of the present invention is to provid...
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IPC IPC(8): F23D14/02F23D14/64F23D14/58F23D14/70F23D14/72
CPCF23D14/02F23D14/58F23D14/64F23D14/70F23D14/72F23D2203/108
Inventor 周浩任雯刘宁王涛许向阳倪云峰
Owner 北京水木清源环保科技有限公司