双锅筒横置式往复炉毕业设计

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1、 - I - SHW10-1.25-P 锅炉设计锅炉设计 摘要摘要 随着国民经济的发展，锅炉作为一种重要的能源转换设备得到了广泛 的研究和长足的发展。 本次设计的课题是 SHW10-1.25-P，即双锅筒横置式往复炉。其循环方 式为自然循环，燃烧煤种为贫煤，其低位发热量是 20900KJ/Kg。 在本次锅炉设计的过程中，主要考虑的因素有炉膛水冷壁的合理布置， 以及炉膛容积热负荷和炉膛面积热负荷对锅炉的影响，对流受热面的布置， 还有尾部受热面的选择和合理布置。 在整个锅炉结构的设计过程中，首先根据煤种和其它技术要求以及给 定的锅炉型号进行受热面的合理布置，然后进行热力计算，其中包括炉膛 及其它各

2、部位的结构特性计算和传热计算，计算完毕后必须进行热力校核； 校核完毕后对上下锅筒及封头等压力元件进行强度计算，以保证锅炉运行 的安全性；最后进行系统的烟风阻力计算，以及根据计算结果进行风机的 选择。 关键词关键词 锅炉设计；热力计算；强度计算；烟风阻力计算 - II - The design of boiler whose type is SHW10-1.25-P Abstract As the development of country economy, the boiler as an important transformer has researched broadly and de

3、veloped progressly. The subject of this design is a two-drum reciprocating boiler, whose type is SHW10-1.25-P. The fuels are poor bituminous, whose low heat values is 20900KJ/Kg. On the process of design, the first factor be considered seriously is that the reasonable arrangement of furnace water wa

4、lland the effect of heat release rate per unit and heat release rate per unit volume .In additional,the arrangement of convection surface and the choice of rear surface are considerate factors. Among the whole design of boiler structure, first, boiler surfaces are arranged reasonably according to the kind of coals,other technical requirement and the boiler type.Then,the calculation of thermal is made, which includes structure and heat transfer calculation of furnance and other position. Wh