Different Understandings of"Scaling on Heating Surface"of Boiler
The heating surface is the surface of the boiler that is in direct contact with the flame or gas and is used to transfer heat to the water and steam.Its types include wall pipe,smoke pipe,boiler horizontal pipe,water wall,superheater,reheater,airpreheater and so on.These heat-ing surfaces transfer the heat generated by fuel combustion to the fluid or directly to the heating body through different ways(such as conduc-tion,convection and radiation),which has an important impact on the efficiency,service life and safety of the boiler.For the boiler using water as heat transfer medium,the calcium and magnesium ions in the water will form incrustation on the heating surface when they are evaporated and concentrated in the boiler,which will affect the safety and stability of the boiler.Only emphasis on"heating surface fouling"is easy to pro-duce loopholes in understanding,which is not conducive to the correct understanding of the boiler fouling position.It from the boiler"heating surface fouling"this topic decodes the new viewpoint,from the microscopic angle thorough discussion"the boiler heating surface"the question to analyse other possible reasons to cause the heating surface fouling,in order to be able to be more accurate and more comprehensive to be engaged in the boiler inspection examination work.
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