鳍片管水冷壁目前在锅炉上获得了广泛的应用。随着设计经验日趋丰富,过去不承担任何附加荷重的鳍片管水冷壁现在常常被用作承重构件。为了使这些构件得到最好的利用,就必须了解各种载荷引起的应力情况。除了内压力以外,所有外加荷重、本身重量以及受到阻碍的热膨胀都会产生应力。鳍片管水冷壁在受应力作用下的情形实质上和各向正交板一样,在管轴方向承受的载荷较横断方向为大。管轴横断方向的承载能 Fin tube water wall is currently on the boiler has been widely used. As design experience is getting richer, finned tube walls, which used to take no additional load, are now often used as load-bearing members. In order to make the best use of these components, we must understand the stress caused by a variety of loads. In addition to the internal pressure, all applied loads, their own weight and hindered thermal expansion stress. The finned tube waterwall under stress is essentially the same as the orthotropic plates, and the load on the tube axis is greater than the transverse direction. Tube axis transverse load capacity