Transformation And Experimental Study Of A Small Vertical Oil-fired Boiler Based On Flameless Combustion

Energy-saving and environmental protection has been the focus of combustion field, is an important strategy of sustainable development in our country, but also one of the key factors restricting the development of our national economy .Our entire human society will be faced with a long-term problems that how to put combustion the most common energy conversion mode more efficient,less impacted to the environmental .Flameless combustion technology is a new burning technology generalizing applied after the 1990s .At present,more practical research in large equipment, but less in the small combustion equipment.Small vertical fuel boilers widely used in large share of the market due to its many advantages ,just as the space occupying less ,high degree of automation, light weight,transportation and installation convenientand,flexible application and so on.But because of the shortage of oil resources and non-renewable, rising oil prices.How to improve the thermal efficiency of boilers, reducing fuel consumption and reduce harmful gas emissions is very importantWe found in gas boiler transformation that, in normal air conditions,to make the strong jet and whirl, with special structure ,can realize flameless combustion.We call it normal temperature air flameless combustion.The gas concentration of NOX and CO far below the traditional low NOX staged-combustion, combustion temperature distribution uniformity and without local high temperature ,flame front.NTAFC keeps all the advantages of flame combustion temperature, but avoid the trouble caused by air preheater, simplify the complex equipment, thus can use in smaller combustion device.We learn the way which realizes NTAFC to applied in small vertical fuel boilers transformation, and put forward the corresponding modification plan, design and processing, and reforming the device built test platform.In the experimental platform, we tested the boiler efficiency, the temperature distribution of fuel gas emission.Testing and research under the condition of different fuel consumption, no equivalent proportion, the furnace combustion temperature distribution, and the effects of pollutants.