电厂锅炉风烟道的设计是否合理,是关系到经济运行的一个重要问题。由于风烟道布置不合理或管网上局部构件的型线不符合流体动力学的特性,往往造成管道阻力增大,导致风机耗电量增加。对风烟道来说,摩擦阻力损失很小,如管网上局部构件选用不当,由此产生的局部阻力是主要的。因此,改善风烟道的布置和构件的结构来降低流动阻力损失是一项很重要的工作。 Whether the design of power plant boiler wind tunnel is reasonable or not is an important issue related to economic operation. Due to the unreasonable arrangement of the wind flue or the profile of the local components on the pipe network do not accord with the hydrodynamic characteristics, pipe resistance tends to increase, resulting in increased power consumption of the fan. For wind chimneys, frictional resistance loss is very small, such as pipe network local components improper selection, the resulting local resistance is the main. Therefore, improving the arrangement of wind chimney and the structure of components to reduce the loss of flow resistance is a very important task.