BOILERS deposited combustible material, such as carbon black, oils idle, coal, etc., it is mainly due to incomplete combustion of the tail into the china alibaba coal szl boiler. Especially when the ignition and shutdown, most likely to cause incomplete combustion, the rear of the boiler deposited a large amount of combustible material. These deposits reduce the heat transfer surface of the tail heating the exhaust gas temperature rises. When the exhaust gas temperature rises to a certain value, there is sufficient oxygen combustion condition occurs at the secondary combustion, secondary combustion is in the shutdown some minutes or hours after the occurrence, which is the ignition point of combustible material and heat conditions. Running faster flow of the flue boiler, heat of the combustible substances produced smoke away quickly, only a slow oxidative, ignition combustion can not be achieved. After the shutdown, the gas flue, the flow is stopped, the heat generated by the oxidation of combustible material not easily lost, the temperature will rise. If the door or flue damper closed tightly, leakage into the fresh air for combustion, causing secondary combustion after shutdown.
In recent years, as people's growing awareness of environmental protection, the State also intended to promulgate stringent emission standards for nitrogen oxides. This china alibaba coal szl boiler companies made a mandatory requirement - how to effectively reduce nitrogen oxide content in the boiler flue gas. Therefore, a focus on emissions of nitrogen oxides environmental revolution is quietly boiler industry. But for domestic boilers companies this road is not good to go, because the difficulty of controlling nitrogen oxides and more demanding of the boiler, every 1 mg / cubic meter of emissions control will cause the boiler costs dramatically.
Combined with China's various policies, both from an economic point of view or the point of view of environmental protection direction, to develop gas-fired china alibaba coal szl boiler is the most clear trends, fast boiler has a lot of experience in the boiler Case "coal to gas", through the transformation of the gas boilers whether harmful emissions or fuel utilization, have significantly improved. Help your business better production needs of life.
First, in line with environmental standards, higher efficiency due to low gas other fuel gas china alibaba coal szl boiler ash, sulfur and nitrogen than coal, burning more fully, and thus the amount of dust in the dust rarely, can greatly mitigate environmental pollution, and better meet the environmental requirements of modern production, on the other hand due to better overall environmental performance of a gas boiler, prompting the convection bank erosion bear small, good heat transfer, heat radiation and strong, low exhaust gas temperature, thermal efficiency is significantly improved, better use of effects to enhance the overall durability of the good gas boiler, prompting the two complement each other to produce the effect.