EBICO is based in Italy and the burner business is one of our strengths.We have formed strategic cooperation with Novar Bergamo and Vizcaya teams with strong burner development capabilities internationally.Optimize and integrate the cutting-edge combustion technology resources in Europe to form EBICO's cutting-edge strategic system.With strategic partners or factories in Italy, Germany, Switzerland, the Netherlands and China, we have decades of experience in the design, development, marketing services and resource optimization of large burners, fuel supply systems and automatic control systems.Our research focuses on large industrial burners, non-standard burners and some highly refined combustion equipment.
EBICO provides standard and non-standard burners.The scientific application of advanced separation technology determines that it can adapt to very harsh environment, EBCIO burner fully meets the requirements of boiler, power plant, industrial boiler, heat conduction oil furnace, asphalt mixing building drying cylinder and asphalt heat conduction oil furnace.Advanced and unique design concept has won the EBICO burner many markets, such as: low nitrogen emission standard burner and intelligent control which meet European CLASS I, CALSS II and CALSS III standards in advance.EBICO burner provides customers with the most reliable products and services, while achieving a variety of fuel efficient and economical configuration.At present, there are many burners for boilers, power plants, industrial boilers, thermal oil boilers, garbage incineration, asphalt mixing building heating services.
EBICO burner has a team of highly technical professionals who are able to analyze customer requirements and discuss the best design and manufacturing systems with the customer to fully meet the specific requirements and expectations of the user.The most important thing is to provide fast support service for customers.
The choice of EBICO burner means that we have experienced partners with the same needs in the same industry, which enables the users to allocate economic and production resources to the maximum extent under the premise of fully considering the ecological and environmental issues.
We can provide all kinds of burners with power range of 85kw-86000kw.Specific are: conventional fuel burner, non-standard custom burner, low nitrogen burner, pulverized coal burner, multi-fuel burner, low calorific value burner.
A burner is a thermal energy device that converts chemical energy into heat energy and controls and regulates the process of fuel combustion and conversion.The earliest burners in use in the world date back to the middle of the 19th century, when gas was used as an industrial fuel.In the mid-19th century, people reacted air or steam with coal, coke or charcoal at high temperature to make an artificial gas with low calorific value. This artificial gas was mainly made of carbon monoxide and hydrogen, while others, such as carbon dioxide and nitrogen, were very high in content.
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.
Principle of flue gas recycling:
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.
From the perspective of heat transfer calculation, the measures to reduce the smoke exhaust temperature are analyzed from the following aspects: increasing the heat exchange surface, improving the heat exchange efficiency of the heating surface, improving the heat exchange temperature difference by using a lower temperature source, and reducing the influence of corrosion on the heat exchange efficiency.As gas boiler host first meet the low nitrogen flame furnace volume and size requirements, the second host of convection heating surface is a main export in order to reduce the smoke temperature, general control in 150 ~ 250 ° C, in order to avoid the smoke temperature increases along with the flue design difficulty of heat preservation, high smoking temperature is too low will cause corrosion in furnace convection heating surface forming wall condensation, therefore, furnace domestic demand to design proper heating surface, the physical dimension more representative chamber size.Increasing the heat exchange surface should mainly consider increasing the heat exchange area of the equipment in the rear of the boiler, which is more favorable for rapidly reducing the exhaust temperature.The second is to have a lower inlet water temperature can be used for heat exchange temperature difference characteristics;Third, corrosion resistant materials can be used to improve its service life.The new structure of efficient heat exchange mainly adopts the form of staggered tube arrangement, efficient heat exchange finned tube, plate heat exchanger, etc., to increase the flue gas disturbance and contact surface, reduce the heat resistance of flue gas stratification, and improve the heat exchange efficiency of medium and flue gas.
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.
——Author：ebico