The development of hydrogen-rich tail gas burner

　　With the continuous promotion of coordinated development of city clusters in key national regions, urbanization strategy and rural revitalization strategy, the degree of urbanization development in China has been gradually improved. In recent years, the scale of cities has been rapidly expanded, people's consumption level has been constantly improved, and garbage production has been increasing, and many cities have been surrounded by garbage.In the section of "accelerating the reform of ecological civilization system and building a beautiful China", the 19th National Congress of the Communist Party of China (CPC) listed the issue of garbage treatment as "prominent environmental problems", and clearly required "strengthening solid waste and garbage disposal", so as to form a space pattern, industrial structure, mode of production and way of life that can save resources and protect the environment.How to deal with waste reasonably and effectively has become the focus of environmental protection for the government and the public.At present, under the principle of waste disposal reduction, recycling and harmless, waste incineration power generation gradually shows great advantages and forms a competitive emerging industry, which has become an important development direction of waste disposal.1kEBoiler Burner

　　In order to achieve environmental protection and low nitrogen emission, gas boiler should consider from three aspects. First, confirm whether the furnace meets the needs of low nitrogen combustion from the heat load parameters of furnace volume and furnace size.Second, confirm the application of low nitrogen combustion technology from the perspective of burner and report the test results in actual use;Three related equipment matching to confirm its rationality from a combustion system, such as single and double fan parameters, flue gas recycling rate, smoke wind mixing way, the precipitation of condensate solution, cold air heating measures, FGR flame stability, FGR impact on the boiler thermal efficiency and so on, analyzed and equipment selection of boiler running safety, stability, the influence of load rate, especially the FGR flame stability of furnace vibration influence;Finally, the conclusion is drawn whether the selected boiler meets the requirement of low nitrogen environmental protection emission.1kEBoiler Burner

　　The valve set is suitable for all non-standard gas (such as coke oven gas, coal bed gas, blast furnace gas, generator gas) and large flow burners, explosion-proof and corrosion-resistant burners or multiple burners that can share the air supply valve. Each burner needs separate filters, metering and control devices.1kEBoiler Burner

　　Principle of flue gas recycling:1kEBoiler Burner

　　Some low-temperature flue gas is directly sent into the furnace, or mixed with air (primary or secondary air) into the furnace, because the flue gas absorbs heat and dilutes the oxygen concentration, so that the combustion speed and temperature in the furnace are reduced, because the thermal NOx is reduced.For gas boilers, NOx reduction is most significant.In general, thermal (t-no), rapid (p-no) and fuel (f-no) production pathways are available.The flue gas recycling system is connected with the gas burner. When the inert gas in the circulating flue gas enters the burner, on the one hand, the flame propagation speed will be reduced, and on the other hand, the temperature level in the furnace will be reduced due to the absorption of heat, so the absolute flame temperature will be lowered, which cannot reach the generation temperature. Therefore, the generation of t-no will be inhibited.Other components in circulating flue gas are N2,CO2and H2O in large quantities. As circulating flue gas is mixed in, oxygen concentration in the mixture of air and flue gas decreases, thus affecting the production amount.Mixing circulating flue gas in the air increases the content of N2in the reaction.Due to the high activation energy required for the reaction of oxygen and nitrogen atoms, a large amount of nitrogen failed to react with oxygen to form NO, and reacted with hydrocarbon components in the fuel.A large amount of N2increases the forward reaction of the above equation and generates a large amount of intermediate HCN.The oxygen atoms in the flue gas then react with these intermediate products. The total O2 reaction of HCN in the poor oxygen environment is as follows: HCN+ 5/4O2-+ 1/2N2+CO2+ 1/2H2O;According to the formula, under the condition of lean oxygen and dense combustion, HCN finally generates N2.Therefore, after adopting the flue gas recycling system, on the one hand, the intermediate product HCN increased, while on the other hand, the concentration of O2decreased compared with that before the flue gas recycling was not applicable, which promoted the complete reaction, and the amount of N2was greatly increased, thus reducing the generation of p-no.1kEBoiler Burner

　　After decades of development, EBICO is beginning to enter a critical period of second entrepreneurship.In the face of the changing market, tide business sea, only firm faith, never give up, forge ahead, constantly beyond, can stand the tide.In the future, we will continue to adhere to the safety, energy saving and environmental protection features of EBICO burner, and build EBICO into a value-added brand that leads the market, exceeds the budget and contributes to the society.1kEBoiler Burner

　　The development of hydrogen-rich tail gas burner is to reuse the hydrogen-rich tail gas discharged from air for a long time, thus improving the utilization rate of hydrogen-rich tail gas and saving production cost.At the same time, hydrogen-rich tail gas burner plays a positive role in promoting energy conservation and emission reduction, and will play a positive role in promoting the environmental protection and the technological progress, development and expansion of the burner industry, producing good social benefits.1kEBoiler Burner