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随着锅炉机组容量增大,近年来膜式水冷壁炉墙显示了很大优越性,被广泛采用。为保证膜式水冷壁管安全可靠运行,需要了解组成膜式水冷壁的鳍片管的应力状态,以选取合理的结构和支撑。本文选择了垂直布置的单根鳍片管为计算、研究对象,应用有限单元法作为研究鳍片管应力状态的计算手段。有限单元法在锅炉行业用以计算鳍片管应力尚属首次,为此,本文介绍了二维有限
With the increase of boiler unit capacity, membrane wall has shown great superiority in recent years and is widely used. In order to ensure the safe and reliable operation of the membrane water wall tube, it is necessary to know the stress state of the fin tube which constitutes the membrane water wall to select a reasonable structure and support. In this paper, a single vertical fin tube is chosen as the calculation and research object. Finite element method is used to calculate the stress state of finned tube. For the first time, finite element method is used to calculate fin tube stress in the boiler industry. To this end, this paper introduces the two-dimensional finite